Review on Brock String - Vision Convergence Training Tool - Unlocking Vision, Athletic Performance, and More! by Warren Hess

I needed a Brock string because my eye doctor recommended it. So I found it and ordered it. The product works exactly as described which meets my needs but the company that made it was very impressive! They were concerned about my satisfaction and offered any assistance needed, including returning a product that I didn't want or need. But I'm sure if I need anything in the future they will be happy to provide it. Thank you to them for providing a good product and wonderful support!