Everything you need for quick surface changes lane side or at home WITHOUT the need for a ball spinner. Attach the SMarT Star Sanding Tool to a handheld drill or attach the knob and use it by hand. Instructions for Use: Place the bowling ball in the rotating ball cup. Attach the desired grit of sanding pad to the inside of the sanding tool. Due to the type of ink used on the TruCut Sanding Pads, we recommend using a permanent marker to write the grit on the pad prior to use. Kit Includes: PYB Smart Star and Rotating Ball Cup, 3 pack of 5″ TruCut Sanding Pads (1 of each grit: 500, 1000, 2000)