These 1-1/2 Inch X 60 Inch cloth sanding belts are made with premium German engineered Starcke material. All our sanding belts are made custom to order in grits 24 - 120. This Zirconia abrasive material has a Poly Cotton "X" weight backing. These sanding belts feature a butt joint for a consistent and smooth finish as well as an extended belt life. A full resin bond allows for long lasting performance. This high performance abrasive belt is excellent for both carbon steel and hardwood.