The Storm Ball Cup is made for the bowler that would like his ball to stay put on a flat surface. Whether polishing/sanding the ball, or just presenting it proudly in your home, the Storm Ball Cup is the item needed to get keep the ball from rolling around. For quick, convenient reliability choose the Storm Ball Cup! - Holds ball in place - Quick and convenient - For sanding or polishing - Description: Perfect for keeping your bowling ball in place while polishing or sanding. This ball cup made by Storm will also be the perfect holder for any ball you might want to display in your home or pro shop