Diablo’s premium ULTRAflex™ sanding sponges include breakthrough innovations that improve performance, extend sanding life and increase hand-sanding productivity. Featuring a premium aluminum oxide blend, these foam sponges remove material faster and offer up to 3X longer sanding life versus standard hand sanding sheets. ULTRAflex™ foam technology allows flexible, multi-profile contour sanding in hard-to-reach 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 sponges with longer life and extreme durability. **Technical Specifications:** – Brand: Diablo – Application: Intercoat Finish – Grit: 220-Grit