Premium sanding disc kit with StickFast backing includes assorted sanding grits needed to complete projects. Aluminum oxide blend is designed for fast material removal and long sanding life. StickFast backing, an industrial-grade pressure-sensitive adhesive backing, provides a strong and secure bond. Clog-SHIELD, a high performance stearate coating, reduces pitch build-up and clogging for maximum productivity. ENDURA-BOND, a specialized high strength resin, provides superior grit-to-backing bond for extreme durability. Ideal for all types of wood, metal, and plastics. Kit includes (1) 5″ pad, (2) 40 grit sanding discs, (2) 80 grit sanding discs, (1) 120 grit sanding disc.