Premium grade 100% waterproof 180 grit aluminum oxide cloth used to clean and prepare copper tubing and fittings for soldering. Combines an open nylon fabric with a phenolic resin adhesive and aluminum oxide to give a sharper cutting product than regular sand cloths. Can also be used with brass aluminum and plastics. Can be cleaned with water for repeated use.Specifications Size: 1.5 in. x 5 YardsFeatures Premium grade 100% waterproof 180 grit aluminum oxide cloth used to clean and prepare copper tubing and fittings for soldering Combines an open nylon fabric with a phenolic resin adhesive and aluminum oxide to give a sharper cutting product than regular sand cloths Can also be used with brass aluminum and plastics Can be cleaned with water for repeated use - SKU: HRZND9397