--- product_id: 50773397 title: "Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!" brand: "brock string" price: "₱3115" currency: PHP in_stock: true reviews_count: 5 url: https://www.desertcart.ph/products/50773397-vision-convergence-training-tool-train-vision-improve-strength-and-athletic store_origin: PH region: Philippines --- # Targeted convergence training Boosts eye strength & athletic edge 6-foot precision length Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! **Brand:** brock string **Price:** ₱3115 **Availability:** ✅ In Stock ## Summary > 👁️‍🗨️ See the difference, own the game! ## Quick Answers - **What is this?** Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More! by brock string - **How much does it cost?** ₱3115 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/50773397-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 - • **Built to Last:** Durable, high-quality materials designed for consistent performance - • **Train Like a Pro:** 6-foot string with precision beads for sport-specific eye workouts - • **Effortless Mastery:** Simple to use at home with a minimal learning curve - • **Trusted by Thousands:** 4.5-star rating from over 1,100 users who leveled up their vision training - • **Sharper Focus, Better Game:** Enhances convergence to improve athletic performance and visual strength ## Overview The Brock String is a 6-foot durable vision training tool designed to improve eye convergence, strength, and athletic performance. Featuring high-quality beads and materials, it offers an easy-to-use, sport-specific training experience trusted by thousands of athletes and professionals alike. ## 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 tight-fitted Brock beads, this 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. - High quality: This Brock string is designed with an extremely high quality, and highly durable string and beads. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0190LOMCQ | | Best Sellers Rank | 138,372 in Sports & Outdoors (See Top 100 in Sports & Outdoors) 117 in Tennis Training Equipment | | Brand Name | Brock String | | Colour | White | | Customer Reviews | 4.5 4.5 out of 5 stars (1,115) 4.5 out of 5 stars | | Grip Material | Plastic | | Handle Material | Ethylene Vinyl Acetate (EVA) | | Item Length | 6 Feet | | Item Weight | 0.02 Kilograms | | Manufacturer | Brock String | | Material | Plastic Rubber Metal | | Model Number | 9G-WVV7-SZRG | | Number Of Items | 1 | | Number Of Packs | 1 | | Other Special Features Of The Product | Durable | | Part Number | 9G-WVV7-SZRG | | Recommended Uses For Product | Exercise and Fitness | | Target Audience | Adult | | Unit Count | 1.0 count | | Upc | 860007923074 722512440333 | ## Product Details - **Brand:** Brock String - **Material:** Plastic Rubber Metal - **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! - Image 1](https://m.media-amazon.com/images/I/513qIyNgBPL.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 ### ⭐⭐⭐⭐⭐ Received in a good condition *by on Reviewed in Singapore 8 February 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! ### ⭐⭐⭐⭐⭐ As Advertised *by on Reviewed in Canada 7 July 2026* Approved by my vestibular physiotherapist ### ⭐⭐⭐⭐⭐ Enfoque *by on Reviewed in Mexico 18 July 2026* Funciona bien. ## 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? - 🛒 **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.ph/products/50773397-vision-convergence-training-tool-train-vision-improve-strength-and-athletic](https://www.desertcart.ph/products/50773397-vision-convergence-training-tool-train-vision-improve-strength-and-athletic) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-09-05*