Diablo's premium extended flat edge sanding sponges include breakthrough innovations for superior sanding performance, extended sanding life and increased hand-sanding productivity. Featuring a premium ceramic grain blend, these flat sanding sponges remove up to 3X more material versus standard Aluminum Oxide sanding sheets. The extended flat angle design makes it easy for detailing large surface areas. The full contact design provides maximum sanding potential by delivering consistent scratch patterns and ultra-smooth finishes. The superior grain bonding system, ENDURA-BOND™, provides Diablo's sanding blocks with longer life and extreme durability.