The 3M Stikit gold paper disc roll 216U is designed for convenience, combining open coat aluminum oxide discs with a handy adhesive backing ready for quick attachment to a Stikit backup pad. Our disc roll makes the discs easy to grab while eliminating the use of disc liners. - 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.