Diablo, 7 pack, 5" PSA assorted sanding discs. Diablo's premium 5", 12-hole random orbital sanding discs with hook & lock backing include break-through innovations that improve performance, extend sanding life and increase productivity. Featuring a premium ceramic blend, these discs remove material faster than other sanding discs and offer an extra long sanding life. Clog-Shield, Diablo's own blend of grinding agents, reduces loading thus maximizing productivity. The superior grain bonding system, Endura-Bond, provides Diablo's sanding discs with longer life and extreme durability. This assorted pack consists of (3) 80 grit, (2) 120 grit and (2) 220 grit discs.