---
product_id: 415416361
title: "Tier One Black Knight Co-Polyester Tennis String"
brand: "tier one sports"
price: "$132.40"
currency: USD
in_stock: true
reviews_count: 2
url: https://www.desertcart.ec/products/415416361-tier-one-black-knight-co-polyester-tennis-string
store_origin: EC
region: Ecuador
---

# Power & Control Multiple Gauges Durability Tier One Black Knight Co-Polyester Tennis String

**Brand:** tier one sports
**Price:** $132.40
**Availability:** ✅ In Stock

## Summary

> 🎾 Elevate Your Game with Every Swing!

## Quick Answers

- **What is this?** Tier One Black Knight Co-Polyester Tennis String by tier one sports
- **How much does it cost?** $132.40 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/415416361-tier-one-black-knight-co-polyester-tennis-string)

## Best For

- tier one sports enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Experience maximum durability and tension stability for consistent play.
- • **Sleek & Stylish:** Available in a classic black color that complements any racquet.
- • **Tailored to You:** Choose from 16, 17, or 18 gauge options to match your unique playing style.
- • **Unleash Your Game:** Designed for high-performance players seeking the perfect balance of power and control.
- • **Elevate Your Performance:** Join the ranks of elite players who trust Tier One for their game.

## Overview

The Tier One Black Knight Co-Polyester Tennis String is engineered for high-performance players, offering an ideal blend of power, control, and durability. With options in multiple gauges and a sleek black finish, this string is designed to enhance your game while ensuring long-lasting performance.

## Description

Tier One Black Knight Co-Polyester Tennis String

## Features

- Designed to provide ideal string performance for high performance players
- Perfectly balanced in power and control
- Maximum durability and tension stability
- Available Gauges: 16 (1.28 mm), 17 (1.23 mm), 18 (1.18 mm)
- Available Colors: Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Batteries Included | No |
| Brand | Tier One Sports |
| Colour | Set - Black |
| Material Type | Polyester |
| Size | 17 gauge (1.23 mm) - 12,2 m set |
| Manufacturer | Tier One Sports |

## Images

![Tier One Black Knight Co-Polyester Tennis String - Image 1](https://m.media-amazon.com/images/I/718bd+qDToL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the difference between black knight and firewire**
A: Good question! We usually recommend these 2 strings based on playing level. We believe Firewire fits best for players with a NTRP between 3.0-5.0 (intermediate -  advanced level) where Black Knight fits better for players with a NTRP from 5.0 and up (advanced - high performance level). 

Main product differences:
- Firewire: Highest possible spin potential, more powerful.
- Black Knight: For players with high racket speeds, offers great directional and depth control, high durability.

Both strings offer great tension stability and are not overly stiff for a polyester string.

Hope that helps!

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Must Use this Product
  

*by S***R on Reviewed in India on 30 March 2021*

Used the string professionally. High durability and great feel. I recommend everyone to use the string as I am currently playing with this string professionally and have changed from a top company brand to Black Knight. Highly appreciated product, do use it!!

### ⭐⭐⭐⭐⭐ 







  
  
    This has become my favorite string
  

*by M***R on Reviewed in the United States on 6 April 2021*

After playing with hyper g for almost a year, I tried a set of Black Knight and fell in love with it. Great performance on all levels!

## Frequently Bought Together

- Tier One Sports TRU PRO Black Knight - Tennis String (Poly): for The Tournament Player
- Tier One Sports TRU PRO Ghost Wire - Tennis String (Poly): Super Soft and Arm Friendly
- Tier One Sports TRU PRO Firewire - Tennis String (Poly): Ultimate Ball Bite

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**Shop now:** [https://www.desertcart.ec/products/415416361-tier-one-black-knight-co-polyester-tennis-string](https://www.desertcart.ec/products/415416361-tier-one-black-knight-co-polyester-tennis-string)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-28*