Full Circle Flex Edge 2.0 Sanding Sheets have a non-curling, waterproof design that uses hook-n-loop for quick attachment to the Flex Edge 2.0 sander. The aluminum oxide paper lasts much longer than traditional silicone carbide paper and is available in 100, 120, 150 and 220 grits to fit your job’s needs.  Full Circle Flex Edge 2.0 Sanding Sheets, 150 Grit, 10pk