KLINGSPOR 718003 - 50-1/2" x 86" 80 grit Sanding BeltWe manufacture our 52 1 2" x 86" sanding belts using premium, heat treated aluminum oxide or zirconia grains that are long life and cost effective. We do NOT use any Chinese materials in the manufacturing of our abrasive belts and we stand behind the quality of our belts or your money back. Whether you are sanding wood, metal, plastic or carbon fiber, our wide belts will provide the performance and finish you are looking for. ALUMINUM OXIDE Aluminum