Diablos premium detail triangle sanding sheets 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 and offer extra-long sanding life than other sanding discs. 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. Includes (4) 80-Grit/Coarse discs for leveling and heavy stock or paint removal, (4) 120-Grit/Fine discs for light stock removal and final sanding preparation before paint, (4) 220-Grit/Ultra Fine discs for final sanding and surface preparation for stain/varnish. Optimized for cordless and oscillating tools.