2" X 36" 100 Grit Zirconia Sanding / Grinding Belt, 6-PK Closed coat, Heavy Y weight Waterproof Cloth backing. Ceramic sanding belts provide the longest lasting cut on non ferrous metals (Aluminum, Copper, Titanium, Nickel) and ferrous (steel, stainless steel, pig iron, alloys, hardened steel). Use for sharpening, grinding of welds, shaping, cutting and blending metals. Also works for dense and hard woods. Significantly longer life when compared to Aluminum Oxide and Zirconia. Super Heavy duty Z-wgt material provides extra strength for working with metal. Resin over resin bonding. Bi-directional tape joint. Anti-clogging stearate (provides a better sanding and cleaner working environment). Wet or Dry applications. Assembled in America.