--- product_id: 496640950 title: "Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S..." brand: "brock string" price: "463 kr" currency: NOK in_stock: true reviews_count: 5 category: "Brock String" url: https://www.desertcart.no/products/496640950-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle store_origin: NO region: Norway --- # Boosts eye convergence & athletic edge 6-foot durable training string 4 precision-positioned beads Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... **Brand:** brock string **Price:** 463 kr **Availability:** ✅ In Stock ## Summary > 👁️‍🗨️ See the game before it happens — train your vision, win your 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?** 463 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/496640950-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 - • **Performance Edge:** Sharpen your vision to gain a competitive advantage in any sport. - • **Train Like a Pro:** Enhance your eye coordination with sport-specific convergence drills. - • **Compact & Durable:** 6-foot high-strength string and tightly fitted beads built to last through intense sessions. - • **Trusted by Experts:** Backed by NeuroVision, a leader in vision training technology. - • **Fast Learning Curve:** Get started immediately with an intuitive design perfect for home use. ## Overview The Sports Brock String by NeuroVision is a 6-foot vision training tool featuring 4 durable beads designed to improve eye convergence and athletic performance. Ideal for convergence insufficiency and sport-specific vision drills, it offers an easy-to-use, compact solution trusted by fitness enthusiasts and professionals alike. ## 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: As advertised. - Daughter bought them to test her eyesight. Review: String too short and didn't get all my beads - Way to fleece people on even such a cheap product. The string is not even close to being long enough. There are only 3 beads, I didn't get the two additional beads. I realize the string is so short they wouldn't fit anyways Not going to bother returning it because it wasn't very expensive. Go to the craft store and make your own for about 1.50 w/ tax. I added it to my cart out of convenience, next time I'll just go to the craft store. ## 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 | 249,257 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 37 in Fitness Technology | | Brand | Brock String | | Customer Reviews | 4.5 4.5 out of 5 stars (84) | | Date First Available | 26 Aug. 2016 | | Guaranteed software updates until | unknown | | 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 ![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 1](https://m.media-amazon.com/images/I/71aLri4CfSL.jpg) ![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 2](https://m.media-amazon.com/images/I/81FsNMYSZ0L.jpg) ![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 3](https://m.media-amazon.com/images/I/71pwb4Th5CL.jpg) ![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 4](https://m.media-amazon.com/images/I/81RLMyqzXzL.jpg) ![Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle S... - Image 5](https://m.media-amazon.com/images/I/618vW51RhpL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ As advertised. *by M***R on 9 May 2025* Daughter bought them to test her eyesight. ### ⭐ String too short and didn't get all my beads *by C***H on 31 July 2026* Way to fleece people on even such a cheap product. The string is not even close to being long enough. There are only 3 beads, I didn't get the two additional beads. I realize the string is so short they wouldn't fit anyways Not going to bother returning it because it wasn't very expensive. Go to the craft store and make your own for about 1.50 w/ tax. I added it to my cart out of convenience, next time I'll just go to the craft store. ### ⭐⭐⭐⭐⭐ Well made and looks like one in brock string training videos *by T***R on 30 March 2023* I had ordered this to try my own vision therapy. This 6 foot seemed to be the most common to use with the 3 beads. Before I received it I had went to a Physical therapist for Vestibular training and she was going to show me how to make one these from supplies from a local store. I was one ahead. This is well made, sturdy string, beads do not slide own their own. Very pleased with the purchase. Wish it had a hook or magnetic on the one end but, I am going to buy one and attach it. ## 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/496640950-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle](https://www.desertcart.no/products/496640950-brock-string-vision-convergence-insufficiency-training-tool-for-eye-muscle) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-17*