- Three Brock Strings, Each 6 Feet in Length
- Great for Convergence Insufficiency Training, Sports Vision Training and Front Sight Focus Training
- Each String Has 5 Tightly Fitted Beads on a High Quality String
- Instructions Included
You’ll simply love just how easy these Brock Strings are to use! These Brock Strings are 6 feet long and come with 5 beads that fit nicely on the string so you can train convergence at different angles. All you have to do is hold an end against your nose, and try to bring your eyes together at the center of each bead. Click ‘Add to Cart’ now!
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