---
product_id: 646982275
title: "BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon"
brand: "bontec"
price: "$246.68"
currency: USD
in_stock: true
reviews_count: 13
category: "Bontec"
url: https://www.desertcart.ec/products/646982275-bontec-small-ergonomics-desk-extender-tray-20-x-9-5
store_origin: EC
region: Ecuador
---

# 90° foldable for space-saving 20x9.5 inch ergonomic extender Clamp fits desks up to 4.7 inch thick BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon

**Brand:** bontec
**Price:** $246.68
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your desk game with sleek comfort and space-saving style!

## Quick Answers

- **What is this?** BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon by bontec
- **How much does it cost?** $246.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/646982275-bontec-small-ergonomics-desk-extender-tray-20-x-9-5)

## Best For

- bontec enthusiasts

## Why This Product

- Trusted bontec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Sleek:** Premium MDF and anti-rust coated steel combine for a sturdy, waterproof, and easy-to-clean black carbon finish.
- • **Universal Clamp Fit:** Adjustable double C-clamp secures firmly on desks up to 4.7 inches thick without damaging surfaces.
- • **Ergonomic Arm Relief:** Reduces elbow pressure by up to 90%, easing neck, shoulder, and wrist strain for all-day comfort.
- • **Space-Smart Foldability:** 90° foldable design lets you tuck away the tray instantly, maximizing your workspace efficiency.
- • **Quick Setup & Versatile Use:** Pre-assembled with tool-free knob installation—perfect as an armrest, shelf, mouse pad, or keyboard platform.

## Overview

The BONTEC Small Ergonomics Desk Extender Tray is a 20x9.5 inch foldable armrest and keyboard platform designed to improve office ergonomics by reducing arm and wrist strain by up to 90%. It features an adjustable double C-clamp compatible with desks up to 4.7 inches thick, a durable waterproof black carbon surface, and quick, tool-free installation. This versatile extender supports up to 33 lbs and folds 90° to save space, making it an essential upgrade for any professional workspace.

## Description

desertcart.com : BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon | 90° Foldable Keyboard Tray Platform, Table Mount Arm Rest Shelf, Clamp on Computer Arm Rest, Suitable for Office Use : Office Products

Review: Just Get It! - I cannot say enough good things about this product! I needed a slightly bigger desk to accommodate for some additional products I received for my home project recording studio. I've been looking at this one for awhile and finally decided to get it, and I'm not sorry that I did! Upon taking out of the package, I noticed that the parts were very well made. Sure, the wood is MDF, but the screw holes are reinforced with metal sleeves so it feels pretty stable in there. It installs easily, and does have some weight to it, in a good way. I was a little hesitant to the "carbon" finish cause I thought that it would be textured and I didn't want that, but it wasn't. It was nice and smooth, where you can still write on it if needed. There is a small gap between the extension and the original main desk. I realize this is next to impossible to fix, as there has to be something to connect the extension to the desk, so I didn't expect there to be absolutely zero gap. But it is minimal, once you put your things on it, you don't even notice it really. Also, really nice feature that you can let that extension down, like a table leaf, if you don't need to use it at the moment. It's hard to find something to complain about this product. But just to have something to grow on, it would be cool to either offer more color options, or to make a version where the wood was paintable easily. The last thing is that I thought before buying this that the price was a little "expensive" for what it was, but after getting it, seeing it setup, and knowing how much it has improved my workflow and I don't have to spend extra cause studio desks are expensive, I don't mind the price at all, and would do it again!
Review: Total GAME CHANGER! - Where have these been all my life!? My home office is quite small, so my desk is similarly tiny. It's functional, but it also means that it has less surface area than I'd like and is not as deep as I need it to be, so either my keyboard and mouse have to be positioned ridiculously close to my monitor OR I have to position them at the very edge of my desk leaving me no room to rest my wrists/arms while working. Neither solution is ideal, and both solutions result in debilitating wrist/arm pain, particularly after a long work day. I found a number of other options that looked like they'd fit the bill, and I actually tried 2 other products BEFORE I found this one, but they were both disappointing. The first one I bought was one of the cheapest options available, and I ended up returning it instantly because it was made of plastic and felt like it would break under the slightest pressure. The second unit I bought was a more expensive metal option with pivoting arms, because I thought the added mobility would be helpful. But after trying it out for a few weeks, I found that the articulating arms made it surprisingly difficult to use and position it where you need it, especially if you're moving your arm a lot while working. So I ended up returning that one too. But the third time is clearly the charm, because this one is a winner!! It's solidly built. It's easy to assemble and install. It's INCREDIBLY sturdy. And it's just the right size, giving me plenty of extra surface area to type and use my mouse comfortably, without it being too bulky or getting in the way. In fact, I loved it so much, I bought two – one for each arm – and it has been well worth the expense. I haven't experienced wrist or arm pain since installing them, so as far as I'm concerned, they're a godsend and worth every penny. The fact that they fold down out of the way is really nice bonus. Before installing these, I never considered that to be an essential feature, but I'm finding that it comes in really handy. Cannot recommend these enough! If you're in the market for a desk extender, these are perfect!!

## Features

- 𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: Our upgraded small desk arm rest is equipped with adjustable double C-clamp, compatible for desks with thickness up to 4.7 inch. The outer sides of the extender tray are rounded, protecting users from scratches. The black surface is wear-resistant and waterproof, making it easy to clean.
- 𝐄𝐫𝐠𝐨𝐧𝐨𝐦𝐢𝐜 𝐃𝐞𝐬𝐢𝐠𝐧: This small arm rest extends from the desk, fully supporting and relaxing your arm so as to improve work conditions. Repeated improvements have been adopted to find the optimum ergonomic solution, greatly relieving pain in the neck, shoulder, arm and wrist, and reducing the pressure on the elbow by up to 90%.
- 𝐄𝐚𝐬𝐲 & 𝐅𝐚𝐬𝐭 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: Pre-assembled, and in most cases, all that you need to do is tighten the four screws which only takes a minute before it is ready for use. The manual knob supports fast installation and disassembly, realizing multi scene conversion and use. Non-hole installation ensures that the desktop is undamaged.
- 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: It is 90° foldable to save space and be easy to store. Sturdy structure can securely hold up to 33 lbs with the size of the support board 20x9.5 inch. Please make sure that your desktop does not exceed a thickness of 4.7 inch. And the distance from the aprons to the edge of the desk should be larger than 2 inches.
- 𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥: This product employs premium MDF sheet and anti-rust steel sheet with coating, environmentally-friendly, durable and without odor. This multi-purpose desk arm tray can serve as arm rest, shelf, desktop extension board, computer mouse pad and equipment support, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CK1MQDTS |
| Best Sellers Rank | #8,045 in Office Products ( See Top 100 in Office Products ) #45 in Wrist Rests |
| Brand | BONTEC |
| Brand Name | BONTEC |
| Color | Black Carbon Fiber |
| Compatible Devices | Keyboard, Mouse |
| Customer Reviews | 4.5 out of 5 stars 1,789 Reviews |
| Form Factor | Ergonomic |
| Item Dimensions L x W | 20"L x 9.5"W |
| Item Highlight | 90° Foldable Keyboard Tray Platform, Table Mount Arm Rest Shelf, Clamp on Computer Arm Rest, Suitable for Office Use |
| Item Shape | Rectangular |
| Item Type Name | Desk Extender Tray |
| Manufacturer | BONTEC |
| Manufacturer Part Number | EH04-HD |
| Material | MDF |
| Material Type | MDF |
| Model Name | EH04-HD |
| Model Number | EH04-HD |
| Number of Items | 1 |
| Other Special Features of the Product | Ergonomic |
| Product Dimensions | 20"L x 9.5"W |
| Size | 20"*9.5"(51cm*24cm) |
| Style | Extender Tray |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BONTEC
- **Color:** Black Carbon Fiber
- **Material:** MDF
- **Product Dimensions:** 20"L x 9.5"W
- **Size:** 20"*9.5"(51cm*24cm)

## Images

![BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon - Image 1](https://m.media-amazon.com/images/I/81tNMpzVarL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon - Image 2](https://m.media-amazon.com/images/I/813jzkZYRsL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon - Image 3](https://m.media-amazon.com/images/I/81los8NKuSL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon - Image 4](https://m.media-amazon.com/images/I/81sRonY01EL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20 x 9.5 Inch, Black Carbon - Image 5](https://m.media-amazon.com/images/I/81M9H6qvWmL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just Get It!
*by T***. on August 6, 2026*

I cannot say enough good things about this product! I needed a slightly bigger desk to accommodate for some additional products I received for my home project recording studio. I've been looking at this one for awhile and finally decided to get it, and I'm not sorry that I did! Upon taking out of the package, I noticed that the parts were very well made. Sure, the wood is MDF, but the screw holes are reinforced with metal sleeves so it feels pretty stable in there. It installs easily, and does have some weight to it, in a good way. I was a little hesitant to the "carbon" finish cause I thought that it would be textured and I didn't want that, but it wasn't. It was nice and smooth, where you can still write on it if needed. There is a small gap between the extension and the original main desk. I realize this is next to impossible to fix, as there has to be something to connect the extension to the desk, so I didn't expect there to be absolutely zero gap. But it is minimal, once you put your things on it, you don't even notice it really. Also, really nice feature that you can let that extension down, like a table leaf, if you don't need to use it at the moment. It's hard to find something to complain about this product. But just to have something to grow on, it would be cool to either offer more color options, or to make a version where the wood was paintable easily. The last thing is that I thought before buying this that the price was a little "expensive" for what it was, but after getting it, seeing it setup, and knowing how much it has improved my workflow and I don't have to spend extra cause studio desks are expensive, I don't mind the price at all, and would do it again!

### ⭐⭐⭐⭐⭐ Total GAME CHANGER!
*by S***M on October 26, 2023*

Where have these been all my life!? My home office is quite small, so my desk is similarly tiny. It's functional, but it also means that it has less surface area than I'd like and is not as deep as I need it to be, so either my keyboard and mouse have to be positioned ridiculously close to my monitor OR I have to position them at the very edge of my desk leaving me no room to rest my wrists/arms while working. Neither solution is ideal, and both solutions result in debilitating wrist/arm pain, particularly after a long work day. I found a number of other options that looked like they'd fit the bill, and I actually tried 2 other products BEFORE I found this one, but they were both disappointing. The first one I bought was one of the cheapest options available, and I ended up returning it instantly because it was made of plastic and felt like it would break under the slightest pressure. The second unit I bought was a more expensive metal option with pivoting arms, because I thought the added mobility would be helpful. But after trying it out for a few weeks, I found that the articulating arms made it surprisingly difficult to use and position it where you need it, especially if you're moving your arm a lot while working. So I ended up returning that one too. But the third time is clearly the charm, because this one is a winner!! It's solidly built. It's easy to assemble and install. It's INCREDIBLY sturdy. And it's just the right size, giving me plenty of extra surface area to type and use my mouse comfortably, without it being too bulky or getting in the way. In fact, I loved it so much, I bought two – one for each arm – and it has been well worth the expense. I haven't experienced wrist or arm pain since installing them, so as far as I'm concerned, they're a godsend and worth every penny. The fact that they fold down out of the way is really nice bonus. Before installing these, I never considered that to be an essential feature, but I'm finding that it comes in really handy. Cannot recommend these enough! If you're in the market for a desk extender, these are perfect!!

### ⭐⭐⭐⭐⭐ Back Pain Gone! Fixed My Posture & Note-Taking Struggles. **Read for tips on installation**
*by M***3 on August 7, 2025*

💡Installation tip: The Anker clamp is adjustable. If it doesn't fit under your desk lip at first, just loosen and reposition the screws to lower the anchor arm (anchor clamp)—I’ve included a photo of the area I mean. Once I did that, it fit perfectly. I truly don’t understand why this has a high return rate—this desk extender is awesome once you know how to install it correctly. I mainly use it as a dedicated spot for my notepad, and it has completely changed my work setup for the better. Before this, I had to move my mouse or awkwardly bend over the far side of my desk just to jot something down. That constant twisting and hunching was wrecking my back. Now, I can take notes comfortably without shifting anything—and my posture has noticeably improved. 🎯 A few more reasons I love it: ✅ The surface is durable and waterproof — no peeling, no bubbling, no chipping ✅ No damage to your desk — attaches with sturdy C-clamps, no drilling ✅ Spacious and strong — easily holds my notepad, mouse, or tablet ✅ Folds away neatly when not in use ✅ Huge ergonomic relief — no more back pain from bad angles I actually bought a small side table before this one, and it bubbled up after a single water spill—so frustrating! This desk tray, on the other hand, wipes clean easily and shows no signs of wear, even after everyday use. Bottom line: This is one of the best ergonomic upgrades I’ve made to my desk. If you’re thinking of returning it because the clamp doesn’t fit—don’t! Adjust the screws and give it a real chance. It's affordable, durable, and way more useful than I expected.

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-10-27*