Does it come with instructions?

Yes it comes with instructions both with the product and again digitally by email.

does it improve my reaction time ?

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.

Are the balls removable?

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.

Can this be used in the bedroom?

Hi, Brock String is a vision performance training tool that can be used anywhere.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Vision Convergence Training Tool, 6 Ft with 5 Beads, White

Product ID: 24534652

Details

Brand
Brock String
Handle Material
Ethylene Vinyl
Recommended Uses For Product
Exercise and
Special Feature
Durable
Target Audience
Adult

⚡easy setup for quick daily use

🎯6 ft precision training length

💪durable, high-quality beads & string

CA$23

Duties & taxes included

In stock

Sold byAmazon CanadaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

👁️‍🗨️ See sharper, perform stronger — don’t blink and miss out!

GUIDED FOR SUCCESS - Includes clear, expert instructions so you maximize every session with confidence.
BOOST ATHLETIC EDGE - Sport-specific eye muscle training enhances visual coordination and competitive performance.
CLINICALLY TRUSTED TOOL - Proven method to strengthen eye muscles and reduce double vision with consistent use.
ENGINEERED FOR ENDURANCE - Premium durable string and beads built to withstand repeated, intense vision workouts.
SHARPEN YOUR FOCUS ANYTIME - Simple, quick setup lets you train convergence and eye agility at home or on the go.

The Brock String is a 6-foot vision convergence training tool designed to strengthen eye muscles, improve focus, and enhance visual agility. Crafted with durable materials and high-quality beads, it supports both beginners and advanced users with easy setup and clear instructions. Ideal for athletes and professionals seeking to boost visual performance and reduce eye strain, this tool is a trusted solution for convergence insufficiency and eye muscle strengthening.

Specifications

Asin	B0190LOMCQ
Best Sellers Rank	#10 in Physical Therapy Arm Exercisers
Date First Available	December 6, 2015
Department	unisex-adult
Item Model Number	9G-WVV7-SZRG
Manufacturer	Thera Systems LLC
Package Dimensions	4.69 x 3.54 x 1.06 inches; 0.63 ounces

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