Diablo 4 pack of 9" x 11" 120 grit sanding sheets. Premium 9'' x 11'' sanding sheets include break-through innovations that improve performance, extend sanding life and increase productivity. Premium aluminum oxide blend a superior quality formulation designed for fast material removal and long sanding life. 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.