--- product_id: 461082935 title: "Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!" brand: "brock string" price: "€ 48.45" currency: EUR in_stock: true reviews_count: 5 category: "Brock String" url: https://www.desertcart.nl/products/461082935-brock-string-10-foot-vision-convergence-training-tool-train-vision store_origin: NL region: Netherlands --- # Lightweight 0.02 kg for easy handling 10-foot length for extended training 5 tightly fitted beads for precise focus Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! **Brand:** brock string **Price:** € 48.45 **Availability:** ✅ In Stock ## Summary > 👁️‍🗨️ See the difference, own the game! ## Quick Answers - **What is this?** Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by brock string - **How much does it cost?** € 48.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/461082935-brock-string-10-foot-vision-convergence-training-tool-train-vision) ## 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 - • **Light as Air:** Ultra-lightweight design (0.02 kg) ensures effortless use during any training session. - • **Precision Focus:** 5 tightly fitted beads enable targeted eye muscle workouts to enhance depth perception. - • **Trusted Quality:** Made in the USA by Thera Systems LLC, backed by 700+ positive reviews with a 4.3-star rating. - • **Train Like a Pro:** 10-foot Brock String designed for advanced sports vision training and convergence improvement. - • **All-Inclusive Kit:** Comes with clear instructions to get you started on your vision strengthening journey immediately. ## Overview The 10 Foot Vision Convergence Training Tool by Brock String is a professional-grade sports vision aid featuring a 10-foot high-quality string with 5 precision beads. Lightweight and durable, it’s designed to improve eye convergence, depth perception, and overall athletic performance. Ideal for adults seeking to enhance visual strength, it includes easy-to-follow instructions and is manufactured in the USA with strong customer approval. ## Description This Brock String is 10 feet in length and is great for sports vision training, convergence insufficiency training, and more! Click 'Add to Cart' Now! Review: Manual de utilização - Instruções de uso apenas em língua chinesa Review: A good length of string. ## Features - 10 Foot Brock String - Convergence Insufficiency Trainer - Sports Vision Training - 5 Tightly Fitted Beads on High Quality String - Instructions Included ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MEFCDD1 | | Brand | Brock String | | Brand Name | Brock String | | Colour | White | | Country of Origin | USA | | Customer Reviews | 4.3 out of 5 stars 704 Reviews | | Grip Material | Plastic | | Handle Material | Plastic | | Item Length | 120 Inches | | Item Weight | 0.02 Kilograms | | Manufacturer | Thera Systems LLC | | Material | Plastic | | Material Type | Plastic | | Other Special Features of the Product | Beaded | | Recommended Uses For Product | Exercise and Fitness | | Special Feature | Beaded | | Target Audience | Adult | | UPC | 722512368781 860007923081 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Brock String - **Color:** White - **Handle Material:** Plastic - **Material:** Nylon - **Target Audience:** Adult ## Images ![Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! - Image 1](https://m.media-amazon.com/images/I/615dTbVdzbL.jpg) ![Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! - Image 2](https://m.media-amazon.com/images/I/619gq0eFnDL.jpg) ![Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! - Image 3](https://m.media-amazon.com/images/I/61BKsBy53-L.jpg) ## Questions & Answers **Q: Will this improve bad case of myopia in adolescent?** A: This device improves depth perception, the ability of both eyes to focus at the same distance. Myopia is the inability to see beyond a given (near) distance. This may help improve myopia, but is not the intention. I use it to improve my focus n the front sight of my air rifle. **Q: Will this exercise help achieve fusion if the eyes are slightly turned inwards, rather than outwards?** A: If you believe the research, based on how it works, all eye muscles should be strengthened. I bough it to help me to hopefully correct my blurred Red Dot. It took about 8 weeks before I noticed a change. Good Luck. **Q: How long do you needto do this to get results?** A: I really don't know. I've been doing it for a few months--a regular, brief daily routine--along with remembering to be aware of seeing out of both eyes, rather than ignoring my lazy eye. Don't know how long it will take to get results -- but I think of the words of my meditation teacher when asked a similar question: "try it for a couple of years and see what you think . . ." Good luck and if it's not helping, check out the book, 'Fixing My Gaze'. There's some good information in there. **Q: Does this fix eye asymmetry?** A: Hi, This product is intended for convergence training where the eyes work together to perform convergence at each bead. ## Customer Reviews ### ⭐ Manual de utilização *by J***E on 9 November 2025* Instruções de uso apenas em língua chinesa ### ⭐⭐⭐⭐⭐ A good length of string. *by S***O on 1 September 2025* ### ⭐⭐ Disappointing *by A***N on 9 May 2025* ## Frequently Bought Together - Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & 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.nl/products/461082935-brock-string-10-foot-vision-convergence-training-tool-train-vision](https://www.desertcart.nl/products/461082935-brock-string-10-foot-vision-convergence-training-tool-train-vision) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-06-27*