--- product_id: 762822463 title: "Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision" brand: "brock string" price: "€ 32.09" currency: EUR in_stock: true reviews_count: 5 category: "Brock String" url: https://www.desertcart.gr/products/762822463-vision-convergence-training-tool-train-vision-improve-strength-and-athletic store_origin: GR region: Greece --- # 5 fixed-position beads for targeted training 6-foot precision length Durable, high-quality nylon & EVA materials Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision **Brand:** brock string **Price:** € 32.09 **Availability:** βœ… In Stock ## Summary > πŸ‘οΈβ€πŸ—¨οΈ Sharpen your focus, elevate your game, and never miss a beat! ## Quick Answers - **What is this?** Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision by brock string - **How much does it cost?** € 32.09 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/762822463-vision-convergence-training-tool-train-vision-improve-strength-and-athletic) ## 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€’ **Built to Last:** Crafted from premium nylon and EVA for durability that withstands daily training. - β€’ **Train Like a Pro:** Enhance eye convergence to boost athletic performance and visual strength. - β€’ **Effortless Mastery:** Simple to use at home with a minimal learning curveβ€”no coach needed. - β€’ **Trusted by Thousands:** 4.5-star rated with over 1,000 reviewsβ€”join the vision training revolution. - β€’ **Precision Engineering:** 6-foot string with 5 tightly-fitted beads for exact eye positioning. ## Overview The Brock String Vision Convergence Training Tool by NeuroVision is a 6-foot durable nylon string with 5 fixed beads designed to improve eye convergence, visual strength, and athletic performance. Easy to use at home, it offers precise eye training with a high-quality build trusted by thousands of users. ## Description IMPROVES CONVERGENCE & PERFORMANCE: Convergence training using a Brock String can be useful for convergence insufficience, as well as strength and athletic performance.; SPORTS PERFORMANCE: With a 6-foot long string and 5 tight-fitted beads, this Brock String is great for training the eyes in specific positions - giving you the ultimate athletic edge; EASY TO USE: You can use Brock String right from the right comfort of your home with a very short learning curve involved.; HIGH QUALITY: This Brock String is designed with an extremely high quality, and highly durable string and beads. Review: It arrived in a good condition, both the bead and the string are of good quality. The bead also doesn't shift easily so it is great! Review: It's good. The beads slide easily but stay where you put them. The string is easy to tie and untie. The string can be drawn taunt and bounce is easily controlled. ## Features - Brock String - Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0190LOMCQ | | Amazon Bestseller | #288,774 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #283 in Women's Exotic Underwear | | Brand Name | Brock String | | Color | White | | Customer Reviews | 4.5 4.5 out of 5 stars (1,072) | | Handle Material | Ethylene Vinyl Acetate (EVA) | | Item Length | 6 Feet | | Item Weight | 0.02 Kilograms | | Material | Nylon, Polypropylene (PP) | | Other Special Features of the Product | Durable | | Recommended Uses For Product | Exercise and Fitness | | Target Audience | Adult | | UPC | 860007923074 722512440333 | ## Product Details - **Brand:** Brock String - **Material:** Nylon, Polypropylene (PP) - **Recommended Uses For Product:** Exercise and Fitness - **Special Feature:** Durable - **Target Audience:** Adult ## Images ![Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision - Image 1](https://m.media-amazon.com/images/I/513qIyNgBPL.jpg) ![Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision - Image 2](https://m.media-amazon.com/images/I/615dTbVdzbL.jpg) ![Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision - Image 3](https://m.media-amazon.com/images/I/51od-gk8pjL.jpg) ![Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision - Image 4](https://m.media-amazon.com/images/I/61lJnrLSL-L.jpg) ![Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by NeuroVision - Image 5](https://m.media-amazon.com/images/I/61BKsBy53-L.jpg) ## Questions & Answers **Q: Does it come with instructions?** A: Yes it comes with instructions both with the product and again digitally by email. **Q: does it improve my reaction time ?** A: We used these for my daughter to help her eyes work together. It was suggested by her vision therapist. I played around with it also and you do get better at focusing. **Q: Are the balls removable?** A: You could fairly easily remove them by untying the knot at the end of the string. However it may be tricky to put them back on. **Q: Can this be used in the bedroom?** A: Hi, Brock String is a vision performance training tool that can be used anywhere. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***H on February 8, 2020* It arrived in a good condition, both the bead and the string are of good quality. The bead also doesn't shift easily so it is great! ### ⭐⭐⭐⭐⭐ Review *by J***B on December 2, 2025* It's good. The beads slide easily but stay where you put them. The string is easy to tie and untie. The string can be drawn taunt and bounce is easily controlled. ### ⭐⭐⭐⭐⭐ Review *by G***A on June 21, 2019* Prodotto come promesso. Ottimo. ## Frequently Bought Together - Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More!, White, 6 foot - Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! - DEFINEST Rechargeable LED Laser Headlamp with an Adjustable Waist Belt, for Sensorimotor Control Testing and Physical Therapy --- ## 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.gr/products/762822463-vision-convergence-training-tool-train-vision-improve-strength-and-athletic](https://www.desertcart.gr/products/762822463-vision-convergence-training-tool-train-vision-improve-strength-and-athletic) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-05-22*