The 3M Stikit Paper Disc Roll 210U features an open coat aluminum oxide abrasive on a light A-weight paper backing, designed for lightweight sanding and finishing applications. These 150mm (approximately 6 inch) P120 grit discs are suitable for general sanding and finishing on various substrates including paint, primer, wood, metal, plastic, and composites. The convenient Stikit adhesive backing allows for quick and easy attachment and removal from a compatible 3M Stikit Disc Pad on a random orbital sander. Its open coat construction helps minimize dust loading, contributing to a longer service life and increased productivity.