DELTA SANDING PAD: Designed for hard-to-reach areas STARLOCK INTERFACE: Provides a 3-d interface between accessory and tool for best grip HOOK-AND-LOOP BACKING - FEATURES SECURE PAPER HOLD AND EASY-TO-CHANGE CONVENIENCE- features secure paper hold and easy-to-change convenience READY OUT OF THE BOX: Five 80 grit triangles and five 120 grit triangles MULTIPURPOSE SANDING: