Diablo, 10 Pack 9x3-2/3 100 Grit Sheet, Diablo's Premium Sanding Sheets Include Break-Through Innovations That Improve Performance, Extend Sanding Life And Increase Productivity. Featuring A Premium Aluminum Oxide 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. These Sanding Sheets Are Ideal For Hand Sanding Or Orbital Sanders.