Description
- mproves 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.


A brock string
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