---
product_id: 486919899
title: "Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility"
brand: "brock string"
price: "€ 32.02"
currency: EUR
in_stock: true
category: "Brock String"
url: https://www.desertcart.gr/products/486919899-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus
store_origin: GR
region: Greece
---

# 6-foot precision training string Boosts eye muscle strength & focus 4 tightly-fitted durable beads Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility

**Brand:** brock string
**Price:** € 32.02
**Availability:** ✅ In Stock

## Summary

> 👁️‍🗨️ See the difference, own the edge.

## Quick Answers

- **What is this?** Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility by brock string
- **How much does it cost?** € 32.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/486919899-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus)

## 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 Home Use:** Start improving your vision agility with zero hassle and a quick learning curve.
- • **Sport-Specific Focus:** Train your eyes in dynamic positions tailored for peak athletic performance.
- • **Athlete-Grade Durability:** Crafted with premium synthetic materials built to last intense sessions.
- • **Elite Convergence Training:** Sharpen your eye coordination with pro-level Brock String tech.
- • **Proven Performance Booster:** Join thousands who’ve enhanced their focus and eye muscle strength.

## Overview

The Vision Convergence Insufficiency Training Tool features a 6-foot high-quality synthetic string with 4 durable beads designed to improve eye muscle strength, convergence, and focus. Ideal for athletes and professionals, it offers easy home use with a quick learning curve, enhancing both vision agility and sports performance.

## Description

You'll simply love just how easy this Brock String is to use! This Brock String is 6 feet long and comes with 5 beads that fit nicely on the string so you can train convergence at different angles. All you have to do is hold an end against your nose, and try to bring your eyes together at the center of each bead. Click 'Add to Cart' now!

## Features

- IMPROVES CONVERGENCE & PERFORMANCE: Convergence training using a Brock String can be useful for convergence insufficiency, as well as strength and athletic performance.
- SPORTS PERFORMANCE: With a 6-foot long string and 4 tight-fitted beads, this Brock String is great for training the eyes in sport-specific positions – giving you the ultimate athletic edge.
- EASY TO USE: You can use Brock String right from the comfort of your home with a very short learning curve involved.
- HIGH QUALITY: This Brock String is designed with an extremely high quality, and highly durable string and beads.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01AZYTTPC |
| Batteries Included? | No |
| Best Sellers Rank | #38,411 in Sporting Goods ( See Top 100 in Sporting Goods ) #5 in Track & Field Training Equipment |
| Brand | Brock String |
| Customer Reviews | 4.5 4.5 out of 5 stars (81) |
| Date First Available | 26 August 2016 |
| Is Discontinued By Manufacturer | No |
| Item model number | NX-TI65-VMCX |
| Manufacturer | Brock String |
| Outer Material | Synthetic |
| Package Dimensions | 10.49 x 9.8 x 1.5 cm; 18 g |
| Size | 6 Ft with 3 Beads |
| Style | Pack of 1 |

## Images

![Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility - Image 1](https://m.media-amazon.com/images/I/71aLri4CfSL.jpg)

## Available Options

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

## Frequently Bought Together

- Brock String 6 Foot with 3 Beads - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, 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.gr/products/486919899-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus](https://www.desertcart.gr/products/486919899-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-18*