{"product_id":"5-bead-brock-string-eye-convergence-training-tool","title":"5-Bead Brock String Visual Convergence Training Tool","description":"\n\u003ch2\u003e5-Bead Brock String – Visual Convergence \u0026amp; Sports Vision Training\u003c\/h2\u003e\n\u003cp\u003eTake your visual performance to the next level with the \u003cstrong\u003e5-Bead Brock String\u003c\/strong\u003e. Widely used in vision therapy and sports performance training, this classic tool helps develop eye-teaming, depth perception, and binocular coordination through simple, guided exercises you can do at home or in a clinical setting.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5 Tight-Fitted Beads:\u003c\/strong\u003e Precisely spaced beads allow progressive eye convergence and divergence exercises, ideal for developing sharp, sport-specific visual focus.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSports Vision Edge:\u003c\/strong\u003e Used by coaches, vision therapists, and athletes to sharpen eye coordination and target-tracking for improved on-field performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Use at Home:\u003c\/strong\u003e No complex setup required — simply anchor one end and follow guided bead-focus exercises. Suitable for ages 14 and up.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from high-quality plastic beads threaded on a strong, long-lasting string built to withstand regular daily use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Iron Storage Box:\u003c\/strong\u003e Comes packaged in a sturdy iron tin (approx. 11.4 × 8.3 cm \/ 4.49 × 3.27 in) that keeps your string clean, dust-free, and travel-ready.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic beads; Iron storage box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox Size:\u003c\/strong\u003e 11.4 × 8.3 cm (4.49 × 3.27 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Beads:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Age:\u003c\/strong\u003e 14+ years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBatteries Required:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 5-Bead Brock String\u003c\/li\u003e\n  \u003cli\u003e1 × Iron Storage Tin\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat Pairings for Vision \u0026amp; Eye Care\u003c\/h3\u003e\n\u003cp\u003eLooking to build out your eye care toolkit? Check out these related products:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/200-pack-disposable-eyeglass-leg-sleeves-hair-coloring-protector\"\u003e200-Pack Disposable Eyeglass Leg Sleeves | Hair Dye Protector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-newborn-baby-grooming-kit-nail-clipper-comb-set-gift-box\"\u003e10-Piece Newborn Baby Grooming Kit – Nail Clipper \u0026amp; Comb Set\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Product photos are for illustrative purposes. Please refer to the written dimensions for accurate sizing. Slight color variations may occur due to monitor display differences. Manual measurement tolerances may apply.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.nei.nih.gov\/learn-about-eye-health\" target=\"_blank\" rel=\"noopener\"\u003eNational Eye Institute on eye health\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a Brock String used for in vision training?\u003c\/h4\u003e\n\u003cp\u003eA: A Brock String is a classic vision therapy tool designed to develop and strengthen binocular eye coordination — the ability of both eyes to work together smoothly. By focusing on each of the five beads along the string one at a time, users practice eye convergence and divergence, helping to build sharper depth perception and target-tracking skills. It is widely used by vision therapists, sports coaches, and individuals looking to improve visual coordination at home.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the 5-Bead Brock String suitable for children?\u003c\/h4\u003e\n\u003cp\u003eA: This Brock String is recommended for ages 14 and up. It is a great tool for teenage athletes looking to develop visual focus and coordination for sports, as well as adults engaged in vision therapy or performance training programs. For younger children, please consult a qualified vision care professional before use.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I store and carry the Brock String?\u003c\/h4\u003e\n\u003cp\u003eA: The Brock String comes with a compact iron storage tin measuring approximately 11.4 × 8.3 cm. The tin keeps the string and beads dust-free, neatly organized, and easy to carry — making it convenient to use at home, at school, or on the go.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a Brock String used for in vision training?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A Brock String is a classic vision therapy tool designed to develop and strengthen binocular eye coordination — the ability of both eyes to work together smoothly. By focusing on each of the five beads along the string one at a time, users practice eye convergence and divergence, helping to build sharper depth perception and target-tracking skills. 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The tin keeps the string and beads dust-free, neatly organized, and easy to carry — making it convenient to use at home, at school, or on the go.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Eyewear Accessories\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/collections\/eyewear-accessories\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"5-Bead Brock String Visual Convergence Training Tool\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/products\/5-bead-brock-string-eye-convergence-training-tool\"}]}\u003c\/script\u003e","brand":"QXL","offers":[{"title":"Matte","offer_id":46964190347463,"sku":"14:202422806#Matte","price":21.6,"currency_code":"USD","in_stock":true},{"title":"Glossy","offer_id":46964190380231,"sku":"14:202422807#Glossy","price":22.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8314\/9255\/files\/Sd9596c64b2e44f38b72bc22b4bb90959N.webp?v=1786057237","url":"https:\/\/qxlcustomerservice.com\/products\/5-bead-brock-string-eye-convergence-training-tool","provider":"QXL","version":"1.0","type":"link"}