The patented CVX ball mark repair tool utilizes a 19?é?? angle and convex curve to promote the correct forward motion to properly repair ball marks (US Patents 7 611 426 : D637 677 and other patents pending). The CVX ball mark repair tool is ergonomically designed with custom contoured rails for comfortable finger placement and a textured indent for secure thumb placement. The magnetic front holds your ball marker in place. Includes two iron stamped ball markers embellished with collegiate trademark. Packaged in hangable clamshell.