Lasting two to three times longer than aluminum oxide discs, the BlueFire H875P coarse grit paper H&L disc features a tough self-sharpening zirconia alumina abrasive that provides outstanding durability. The E weight latex/paper backing withstands tearing and maintains flexibility, while the open coat design helps cut down on loading. Installation and removal are fast and easy, as the disc comes with a hook and loop back. Select the BlueFire H875P disc for blending, sanding, stock removal and blending applications on woods, aluminum, fiberglass and composites. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.