3M Stikit discs are designed to handle a wide range of sanding and finishing needs. These high-quality, coated abrasive products come ready to use with a pressure sensitive adhesive coating on the backside so they conveniently press on to the backup pad and remove cleanly, leaving an uncontaminated surface for the next disc. The Stikit disc should be used in conjunction with our 3M Stikit backup pad (also called a disc pad and sold separately) that is attached to a disc sander, random orbital sander or stationary disc sander. - 3M Stikit paper disc roll 236U offers a versatile disc with a convenient adhesive backing ready for quick and easy attachment to a 3M Stikit backup pad. The roll offers quick access to a disc and eliminates disc liners. The disc features a strong, C-weight paper backing that resists wear during aggressive sanding.