Order this Diablo 5 in. 220 Grit Universal Hole Sanding Disc with Hook & Lock Backing for delivery. Premium ceramic blend, a superior quality formulation designed for fast material removal and long sanding life. Unique 12-hole pattern provides a one-size-fits-all design (fits all 5 and 8-hole sanders) for fast and precise alignment. Premium hook and lock backing enables repeated attachment and removal of discs for a consistent secure connection. Clog-SHIELD high performance separate coating that 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. Tool usage – orbital and DA sanders. Materials – wood, metal and plastics. Recommended use – fast leveling, shaping, extra heavy removal and stripping.