---
product_id: 318846637
title: "Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility"
brand: "brock string"
price: "€ 37.28"
currency: EUR
in_stock: true
category: "Brock String"
url: https://www.desertcart.sk/products/318846637-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus
store_origin: SK
region: Slovakia
---

# 5 adjustable beads per string Strengthens eye muscle agility 3 x 6 ft precision strings Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility

**Brand:** brock string
**Price:** € 37.28
**Availability:** ✅ In Stock

## Summary

> 👁️‍🗨️ Sharpen your focus, strengthen your vision, and never miss a moment!

## 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?** € 37.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/318846637-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

- • **User-Friendly Design:** Lightweight, durable nylon/polypropylene materials with clear instructions for effortless use.
- • **Customizable Focus Points:** 5 tightly fitted beads let you target multiple focal distances with ease.
- • **Proven Vision Enhancement:** Ideal for convergence insufficiency and sports vision training to sharpen your competitive edge.
- • **Triple Pack for Consistent Practice:** Three strings ensure uninterrupted training sessions and sharing with peers.
- • **Precision Length for Optimal Training:** Each 6-foot string offers ample range for versatile convergence exercises.

## Overview

The Brock String Vision Convergence Training Tool includes three 6-foot nylon/polypropylene strings, each with 5 adjustable beads designed to improve eye muscle strength, focus, and agility. Perfect for convergence insufficiency therapy and sports vision enhancement, this lightweight, durable set comes with easy-to-follow instructions, making it a must-have for professionals seeking sharper, more agile vision.

## Description

You'll simply love just how easy these Brock Strings are to use! These Brock Strings are 6 feet long and come 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

- Three Brock Strings, Each 6 Feet in Length
- Great for Convergence Insufficiency Training, Sports Vision Training and Front Sight Focus Training
- Each String Has 5 Tightly Fitted Beads on a High Quality String
- Instructions Included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075881G1K |
| Best Sellers Rank | #15,103 in Sporting Goods ( See Top 100 in Sporting Goods ) #1 in Archery Bowstrings |
| Brand Name | Brock String |
| Color | Multicolor |
| Customer Reviews | 4.6 4.6 out of 5 stars (173) |
| Grip Material | Nylon or Polypropylene |
| Handle Material | Nylon or Polypropylene |
| Item Length | 72 Inches |
| Item Weight | 0.04 Kilograms |
| Manufacturer | Brock String |
| Material | Nylon, Polypropylene (PP) |
| Model Number | 5Q-N5NL-FZO4 |
| Number of Items | 3 |
| Number of Packs | 3 |
| Other Special Features of the Product | Convergence Training |
| Part Number | 5Q-N5NL-FZO4 |
| Recommended Uses For Product | Exercise and Fitness, Speed and Endurance |
| Target Audience | Adult |
| UPC | 860007923098 722512369382 |
| Unit Count | 3.0 Count |

## Product Details

- **Brand:** Brock String
- **Material:** Nylon, Polypropylene (PP)
- **Recommended uses for product:** Exercise and Fitness, Speed and Endurance
- **Special features:** Convergence Training
- **Target audience:** Adult

## Images

![Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility - Image 1](https://m.media-amazon.com/images/I/51i-qwxd9HL.jpg)

## Available Options

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

## Frequently Bought Together

- Brock String Front Sight Focus String Combo Pack, Three 6-Foot, Vision Convergence Training Tool, Great for Shooters, Front Sight Training and More!
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- 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.sk/products/318846637-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus](https://www.desertcart.sk/products/318846637-vision-convergence-insufficiency-training-tool-for-eye-muscle-strengthening-focus)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-12*