Box of 50 Dura-Gold (1000 Grit) 5" PSA Premium Green Film Back Sanding Discs Made with Fused Zirconia Alumina Corundum for a sharp cut and uniform finish. Dura-Gold Discs are conveniently packed 50 to a box with individual discs having a liner to protect the pressure sensitive adhesive (PSA) from contamination until you are ready to use, they also include a easy to use tab to easily remove the liner. Dura-Gold discs will easily press onto your backing pad and they also remove cleanly leaving an uncontaminated surface for the next disc. Dura-Gold Sandpaper discs delivers a fast, exceptionally long lasting cut with a consistent scratch pattern Auto Body and painting, wood working, metal working, Fiberglass, Primers and Plastics. Dura-Gold has maximum resistance to clogging and loading which increases your productivity and reduced material consumption. Provides Exceptional Sanding Performance, so you can get the job done fast, saving you time and money!