--- product_id: 496640950 title: "Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision" brand: "brock string" price: "164 zΕ‚" currency: PLN in_stock: true reviews_count: 5 category: "Brock String" url: https://www.desertcart.pl/products/496640950-sports-brock-string-vision-convergence-training-convergence-insufficiency-tool-train store_origin: PL region: Poland --- # Boosts athletic eye performance 6-foot durable string 4 precision beads Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision **Brand:** brock string **Price:** 164 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ‘οΈβ€πŸ—¨οΈ See the difference, own the game! ## Quick Answers - **What is this?** Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision by brock string - **How much does it cost?** 164 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/496640950-sports-brock-string-vision-convergence-training-convergence-insufficiency-tool-train) ## 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 - β€’ **Train Like a Pro:** 6-foot string with 4 tight-fitted beads for sport-specific eye training - β€’ **Therapist-Approved:** Trusted tool used in professional vision therapy sessions - β€’ **Instant Eye Upgrade:** Improves convergence insufficiency and sharpens visual focus - β€’ **Athlete’s Secret Weapon:** Enhance eye muscle strength to gain a competitive edge - β€’ **Durability Meets Simplicity:** Highly durable materials designed for effortless home use ## Overview The Brock String is a 6-foot vision training tool featuring 4 durable beads designed to improve eye convergence and muscle strength. Ideal for convergence insufficiency and athletic performance enhancement, it offers an easy-to-use, therapist-approved solution for home vision training. ## Description Shop Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision. Free delivery and returns on all eligible orders. Review: Daughter bought them to test her eyesight. Review: This is the exact tool used in vision therapy. ## 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. - This Brock String is designed with an extremely, and highly durable string and beads. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01AZYTTPC | | Batteries included? | No | | Best Sellers Rank | 215,576 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 64 in Bowling Training Aids | | Brand | Brock String | | Customer Reviews | 4.5 4.5 out of 5 stars (78) | | Date First Available | 26 Aug. 2016 | | Is discontinued by manufacturer | No | | Item model number | NX-TI65-VMCX | | Manufacturer | NeuroVision | | Package Dimensions | 10.49 x 9.8 x 1.5 cm; 18 g | ## Images ![Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision - Image 1](https://m.media-amazon.com/images/I/71aLri4CfSL.jpg) ![Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision - Image 2](https://m.media-amazon.com/images/I/81FsNMYSZ0L.jpg) ![Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision - Image 3](https://m.media-amazon.com/images/I/71pwb4Th5CL.jpg) ![Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision - Image 4](https://m.media-amazon.com/images/I/81RLMyqzXzL.jpg) ![Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision - Image 5](https://m.media-amazon.com/images/I/618vW51RhpL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***R on 9 May 2025* Daughter bought them to test her eyesight. ### ⭐⭐⭐⭐⭐ Review *by P***E on 19 July 2025* This is the exact tool used in vision therapy. ### ⭐⭐⭐⭐⭐ Review *by N***Y on 9 June 2025* Plenty of string/rope. Great easy to help with vision therapy ## 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/496640950-sports-brock-string-vision-convergence-training-convergence-insufficiency-tool-train](https://www.desertcart.pl/products/496640950-sports-brock-string-vision-convergence-training-convergence-insufficiency-tool-train) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-06*