3M Stikit Green Corps abrasive discs excel at filler shaping, metal shaping, paint removal, and rust removal on metal, plastic and fiberglass surfaces. Green Corps products are made with a blend of abrasives including 3M's high-performance, ceramic/aluminum-oxide grain which provides increased abrasive life and a faster cut rate. Heavyweight E-backing adds durability. Pressure-sensitive adhesive lets you make quick and easy disc changes between grades or applications. Open coat construction reduces loading on fresh filler. Discs are for dry sanding only. 8" diameter.