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!

Instructions Included. High Quality: These Brock Strings are designed with an extremely high quality, and highly durable string and beads. Easy To Use: You can use Brock String right from the comfort of your home with a very short learning curve involved. Sports Performance: With three 6-foot long strings and 5 tight-fitted beads on each, these Brock Strings are great for training the eyes in sport-specific positions – giving you the ultimate athletic edge. Convergence & Performance: Convergence training using a Brock String can be useful for convergence insufficiency, as well as strength and athletic performance.

Date First Available: August 31, 2017. Best Sellers Rank: #32,730 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 140 ratings 4.5 out of 5 stars. : B075881G1K. Part Number: ?5Q-N5NL-FZO4. Manufacturer: ?Thera Systems LLC. Brand Name: ?Brock String. Package Weight: ?0.04 Kilograms. Item Package Dimensions L x W x H: ?5.51 x 4.25 x 1.57 inches.