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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المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

Brock String, Vision Convergence Insufficiency Training Tool for Eye Muscle Strengthening, Focus Exercise and Agility

Product ID: 24534652

Details

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

⚡5 high-visibility beads for targeted focus

🎯6 ft precision training length

💪Durable nylon & EVA grip for lasting use

E£ 1873

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

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Description

👁️‍🗨️ See the difference, own the game.

ATHLETE GRADE VISUAL EDGE - Train your eyes in sport-specific positions to elevate coordination and outpace the competition.
SHARPER FOCUS STRONGER VISION - Boost your eye muscle strength and conquer convergence insufficiency with targeted exercises.
EFFORTLESS SETUP INSTANT PRACTICE - Simple to use at home with a quick learning curve—vision training made convenient for busy pros.
GUIDED TRAINING FOR MAXIMUM IMPACT - Includes clear instructions so you can optimize every session and track your progress confidently.
PREMIUM BUILD FOR CONSISTENT RESULTS - Crafted with durable materials and high-quality beads to ensure reliable, repeatable workouts.

The Brock String Vision Convergence Training Tool is a 6-foot durable eye exercise device featuring 5 high-visibility beads and an EVA foam grip. Designed to strengthen eye muscles, improve focus, and enhance visual coordination, it’s perfect for athletes and professionals seeking to boost daily visual performance. Easy to use at home with included instructions, this tool supports effective convergence training and agility enhancement.

Specifications

ASIN	B0190LOMCQ
Best Sellers Rank	#3,175 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #4,586 in Exercise & Fitness Equipment
Brand Name	Brock String
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (2,184)
Grip Material	Ethylene Vinyl Acetate Foam
Handle Diameter	38 month
Handle Material	Ethylene Vinyl Acetate (EVA)
Item Length	6 feet
Item Weight	0.02 kg
Manufacturer	Thera Systems LLC
Model Number	9G-WVV7-SZRG
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
UPC	860007923074 722512440333
Unit Count	1 count

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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E£ 1873

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Smooth transaction and product arrived in perfect condition.

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