---
product_id: 59495572
title: "Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S..."
brand: "brock string"
price: "฿2615"
currency: THB
in_stock: true
reviews_count: 6
category: "Brock String"
url: https://www.desertcart.co.th/products/59495572-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle
store_origin: TH
region: Thailand
---

# 5 tightly fitted beads for precise convergence focus Lightweight 0.02 kg for effortless handling 10-foot length for versatile mid-distance training Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S...

**Brand:** brock string
**Price:** ฿2615
**Availability:** ✅ In Stock

## Summary

> 👁️‍🗨️ See the difference, own the game!

## Quick Answers

- **What is this?** Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... by brock string
- **How much does it cost?** ฿2615 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/59495572-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle)

## Best For

- brock string enthusiasts

## Why This Product

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

## Key Features

- • **Unlock Athletic Edge:** Clinically favored tool to improve eye strength, focus, and sports vision performance
- • **Built for Consistency:** Durable plastic handles and beads designed to withstand daily training routines
- • **Precision Beaded Design:** Five securely fixed beads ensure consistent, accurate convergence training every session
- • **Train Your Vision Like a Pro:** 10-foot string length targets mid-distance eye coordination for real-world performance gains
- • **Light as Air, Strong on Results:** Ultra-lightweight construction means no fatigue during extended use

## Overview

The Brock String 10 Foot Vision Convergence Training Tool is a professional-grade eye exercise aid featuring a durable 10-foot string with five tightly fitted beads. Designed to improve convergence insufficiency, eye strength, and athletic visual performance, it offers a lightweight, consistent training experience favored by athletes and vision therapists alike.

## Description

Product Description

Review: A good length of string. - Broc strings require patience and consistency of use. This one, unlike most on the market, is actually of a decent length, long enough for those of us training our eyes to see at mid-distance. One word of caution: don't be tempted to remove or rearrange the balls, as it is almost impossible to thread them back on the string. Good value. Give it a try!
Review: … - Bom

## Features

- Convergence Insufficiency Training
- Vision Performance Tool
- Sports Vision Performance Tool
- 10 Foot Brock String includes high quality 10 foot string with 5 tightly fitted beads.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MEFCDD1 |
| Best Sellers Rank | 54,234 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 13 in Bowstrings |
| Brand | Brock String |
| Brand Name | Brock String |
| Colour | White |
| Customer Reviews | 4.3 out of 5 stars 723 Reviews |
| Grip Material | Plastic |
| Handle Material | Plastic |
| Handle material | Plastic |
| Item Length | 10 Feet |
| Item Weight | 0.02 Kilograms |
| Manufacturer | NeuroVision |
| Material | Plastic |
| Model Number | 7.22512E+11 |
| Other Special Features of the Product | Beaded |
| Part Number | 7.22512E+11 |
| Recommended Uses For Product | Exercise and Fitness |
| Recommended uses for product | Exercise and Fitness |
| Special feature | Beaded |
| Target Audience | Adult |
| Target audience | Adult |
| UPC | 722512368781 860007923081 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Brock String
- **Material:** Plastic
- **Recommended uses for product:** Exercise and Fitness
- **Special feature:** Beaded
- **Target audience:** Adult

## Images

![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 1](https://m.media-amazon.com/images/I/615dTbVdzbL.jpg)
![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 2](https://m.media-amazon.com/images/I/619gq0eFnDL.jpg)
![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 3](https://m.media-amazon.com/images/I/61BKsBy53-L.jpg)

## Questions & Answers

**Q: Will this improve bad case of myopia in adolescent?**
A: This device improves depth perception, the ability of both eyes to focus at the same distance.  Myopia is the inability to see beyond a given (near) distance.  This may help improve myopia, but is not the intention.  I use it to improve my focus n the front sight of my air rifle.

**Q: Will this exercise help achieve fusion if the eyes are slightly turned inwards, rather than outwards?**
A: If you believe the research, based on how it works, all eye muscles should be strengthened.  I bough it to help me to hopefully correct my blurred Red Dot.  It took about 8 weeks before I noticed a change.  Good Luck.

**Q: How long do you needto do this to get results?**
A: I really don't know. I've been doing it for a few months--a regular, brief daily routine--along with remembering to be aware of seeing out of both eyes, rather than ignoring my lazy eye. Don't know how long it will take to get results -- but I think of the words of my meditation teacher when asked a similar question: "try it for a couple of years and see what you think . . ." Good luck and if it's not helping, check out the book, 'Fixing My Gaze'. There's some good information in there.

**Q: Does this fix eye asymmetry?**
A: Hi,

This product is intended for convergence training where the eyes work together to perform convergence at each bead.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good length of string.
*by S***O on 1 September 2025*

Broc strings require patience and consistency of use. This one, unlike most on the market, is actually of a decent length, long enough for those of us training our eyes to see at mid-distance. One word of caution: don't be tempted to remove or rearrange the balls, as it is almost impossible to thread them back on the string. Good value. Give it a try!

### ⭐⭐⭐⭐⭐ …
*by F***S on 6 June 2026*

Bom

### ⭐⭐ Disappointing
*by A***N on 9 May 2025*

Instructions were not included as specified in the product details. Disappointing

## Frequently Bought Together

- Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!
- 2 Strabismus Correction Cards, Improve Visual Sense Amblyopia Coated Paper Training Cards with Red and Green Bars
- Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More!, White, 6 foot

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-07-08*