This kit has everything you need for basic bowling ball surface maintenance. TruCut Sanding Pads are made for bowling balls. First, place the bowling ball in the ball cup and spray half the bowling ball with So Fresh & So Clean Bowling Ball Life Extender. Then, apply the desired surface to the bowling ball with the TruCut Sanding Pads. Use small circles and moderate pressure. Finally, apply That Purple Stuff to the CtD Power Pad to clean the bowling ball. Flip the bowling ball over and repeat on the other side. This kit contains: 8 oz So Fresh & So Clean Bowling Ball Life Extender, 4 oz That Purple Stuff Bowling Ball Cleaner, TruCut Sanding Pads in 500, 1000 & 2000 grit, CtD Branded Ball Cup and a CtD Power Pad (color may vary).