3M(TM) Trizact(TM) Finesse-it(TM) Film Disc Roll 466LA, 3 in x NH x 250 in Die# 300V A7, 4 per case Micro-structured silicon carbide on a waterproof film backing. Available in sheets and discs in grit size A5 with pressure sensitive adhesive attachment system. Developed as part of system for repairing light defects in automotive paint applications.