---
product_id: 548570775
title: "QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads)"
brand: "qlkunla"
price: "$94.56"
currency: USD
in_stock: true
reviews_count: 13
category: "Qlkunla"
url: https://www.desertcart.ec/products/548570775-qlkunla-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration
store_origin: EC
region: Ecuador
---

# Compact 6.7x4.7x5.8 inch size Smooth perpetual kinetic motion 7 precision steel beads QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads)

**Brand:** qlkunla
**Price:** $94.56
**Availability:** ✅ In Stock

## Summary

> ⚡ Swing into brilliance with every click!

## Quick Answers

- **What is this?** QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads) by qlkunla
- **How much does it cost?** $94.56 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/548570775-qlkunla-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration)

## Best For

- qlkunla enthusiasts

## Why This Product

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

## Key Features

- • **Desk Statement:** Elevate your workspace with a sleek, science-inspired decor piece.
- • **Gift of Genius:** A thoughtful present blending fun, learning, and style for home or office.
- • **Physics in Motion:** Watch momentum and energy transfer flawlessly with every swing.
- • **Stress-Busting Kinetics:** Engage in meditative motion to refresh your mind during busy days.
- • **Educational & Interactive:** Perfect for sparking curiosity in physics for all ages, from kids to pros.

## Overview

The QLKUNLA Newtons Cradle features 7 high-quality steel beads that demonstrate the conservation of momentum and energy through smooth, perpetual kinetic motion. Compact and stylish, it serves as both an educational tool and a sophisticated desktop decoration, ideal for home, office, or classroom use. Highly rated and perfect for ages 3 and up, it’s a timeless gift that combines science, stress relief, and modern design.

## Description

desertcart.com: QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads) : Toys & Games

Review: Great science learning - Very nice but beware of tangling nylon cords if used with too young of child. I recommend this for 8 yr old and up.
Review: Great quality - My son requested one of these for Christmas. Well made and he loves playing with it.

## Features

- Gravity At Work :See before your eyes as the Newton Balls transfer fall and transfer weight across the gadget. Drop one ball or two balls. You can see the energy transfer in such an astounding way!
- Office Desk Decor :Show some character and express your love for science and physics with this decorating your office space. Can be meditative and fun to watch also!
- Educational & Classy :Experience the visual display of momentum. Use this in class and share with your friends and family the exciting world of physics and science!
- Perpetual Motion: The pendulum balls show the conservation of momentum and energy, creating perpetual motion,these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools.
- Good Gift Idea: Suit for both kids and adults, excellent for learning science, killing boring time and releasing stress, which makes it a good present for birthday, holiday. Meanwhile, It’s not only a toy, but also a good desk decor. You can put it on your desk or shelf, and swing it anytime when you passing by, it will be a wonderful scenery in your home or office!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C7KRG6NP |
| Best Sellers Rank | #3,465 in Toys & Games ( See Top 100 in Toys & Games ) #108 in Educational Science Kits |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,829) |
| Item Weight | 2.57 pounds |
| Item model number | A-12 |
| Manufacturer | QLKUNLA |
| Manufacturer recommended age | 3 years and up |
| Product Dimensions | 6.69 x 4.7 x 5.83 inches |

## Images

![QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads) - Image 1](https://m.media-amazon.com/images/I/61tPipkRoHL.jpg)

## Questions & Answers

**Q: Will this keep going all day with out stopping? I need it to keep going all day to trick my thermostat that there is someone home ?**
A: This isn't a perpetual motion device.  It will stop after about a minute. Friction has its way.

**Q: is the base wood some say it is not**
A: It's not wood, it's plastic.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great science learning
*by A***R on July 23, 2025*

Very nice but beware of tangling nylon cords if used with too young of child. I recommend this for 8 yr old and up.

### ⭐⭐⭐⭐⭐ Great quality
*by J***H on December 30, 2025*

My son requested one of these for Christmas. Well made and he loves playing with it.

### ⭐⭐⭐⭐⭐ Relaxing item
*by L***N on January 10, 2026*

It's smaller then I thought it would be but still looks and works great.

## Frequently Bought Together

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-26*