--- product_id: 318846637 title: "Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility" brand: "brock string" price: "EĀ£ 3008" currency: EGP in_stock: true category: "Brock String" url: https://www.desertcart.com.eg/products/318846637-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle store_origin: EG region: Egypt --- # Strengthens eye muscles 6 ft length per string 5 fixed beads per string Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility **Brand:** brock string **Price:** EĀ£ 3008 **Availability:** āœ… In Stock ## Summary > šŸ‘ļøā€šŸ—Øļø Sharpen your focus, strengthen your vision, and never miss a detail! ## Quick Answers - **What is this?** Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility by brock string - **How much does it cost?** EĀ£ 3008 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/318846637-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 - ā€¢ **Durable Build:** High-quality nylon/polypropylene ensures long-lasting use without bead slippage - ā€¢ **Portable & Easy:** Lightweight and simple to use anywhere, perfect for busy professionals - ā€¢ **Triple Pack Value:** Three 6-foot strings for extended, versatile training sessions - ā€¢ **Clinically Endorsed:** OT-approved design trusted for effective convergence insufficiency therapy - ā€¢ **Precision Eye Training:** 5 tightly fitted beads enable targeted focus at multiple depths ## Overview The Brock String Vision Training Tool includes three 6-foot nylon/polypropylene strings, each with 5 fixed beads designed for convergence insufficiency and sports vision training. Lightweight and OT-approved, it offers a durable, portable solution to improve eye muscle strength and focus agility, making it ideal for professionals seeking effective vision therapy at home or on the go. ## 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 | #28,713 in Sporting Goods ( See Top 100 in Sporting Goods ) #5 in Archery Bowstrings | | Brand Name | Brock String | | Color | Multicolor | | Customer Reviews | 4.6 4.6 out of 5 stars (174) | | 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 ![Brock String, 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! - SADIKALO 6Pcs Eye Exercise Chart - Visual Muscle Relaxation Office Classroom Wall Decor Myopia Dry Eye Office Gifts Waterproof Posters Card Desk Sign for Home School Kids Students Office Coworkers - Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More!, White, 6 foot --- ## Why Shop on Desertcart? - šŸ›’ **Trusted by 1.3+ Million Shoppers** ā€” Serving international shoppers since 2016 - šŸŒ **Shop Globally** ā€” Access 737+ million products across 21 categories - šŸ’° **No Hidden Fees** ā€” All customs, duties, and taxes included in the price - šŸ”„ **15-Day Free Returns** ā€” Hassle-free returns (30 days for PRO members) - šŸ”’ **Secure Payments** ā€” Trusted payment options with buyer protection - ā­ **TrustPilot Rated 4.5/5** ā€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.eg/products/318846637-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle](https://www.desertcart.com.eg/products/318846637-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-10-08*