---
product_id: 59495572
title: "Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S..."
brand: "brock string"
price: "313 kr"
currency: DKK
in_stock: null
reviews_count: 6
category: "Brock String"
url: https://www.desertcart.dk/products/59495572-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle
store_origin: DK
region: Denmark
---

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

**Brand:** brock string
**Price:** 313 kr
**Availability:** ❌ Out of Stock

## Summary

> 👁️‍🗨️ See the difference, own the edge!

## Quick Answers

- **What is this?** Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... by brock string
- **How much does it cost?** 313 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/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

- • **Effortless Consistency:** Generous length and durable materials make daily vision workouts easy and reliable.
- • **Boost Athletic Performance:** Specifically engineered to sharpen sports vision and elevate your game-day readiness.
- • **Lightweight & Durable Design:** Crafted with high-quality plastic for a sturdy yet ultra-light tool you can use anywhere.
- • **Train Your Vision Like a Pro:** 10-foot Brock String designed for effective convergence training and improved eye strength.
- • **Precision Beads for Focus Mastery:** Five tightly fitted beads ensure accurate visual targeting and enhanced depth perception.

## Overview

The 10 Foot Vision Convergence Training Tool by Brock String is a premium sports vision aid featuring a durable 10-foot white string with five precision plastic beads. Lightweight at just 0.02 kg, it’s designed to improve eye strength, convergence, and athletic performance through consistent use, making it ideal for professionals seeking to enhance focus and visual acuity.

## Description

Shop Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!. Free delivery and returns on all eligible orders.

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: Instruções de uso apenas em língua chinesa

## 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 |
| Brand Name | Brock String |
| Colour | White |
| Customer Reviews | 4.3 4.3 out of 5 stars (704) |
| Grip Material | Plastic |
| Handle Material | Plastic |
| Item Length | 10 Feet |
| Item Weight | 0.02 Kilograms |
| Manufacturer | NeuroVision |
| Material | Plastic |
| Other Special Features of the Product | Beaded |
| Recommended Uses For Product | Exercise and Fitness |
| 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)

## 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!

### ⭐ Review
*by J***E on 9 November 2025*

Instruções de uso apenas em língua chinesa

### ⭐⭐ Review
*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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**Shop now:** [https://www.desertcart.dk/products/59495572-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle](https://www.desertcart.dk/products/59495572-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-23*