Oatey 38707 Mil-Pipe Guard, 1/2-Inch, 3/4-Inch, 1-Inch, Blue Pipe sleeve is made of 4 mil polyethylene Can be used to provide protection from corrosion in concrete slab installations Blue color sleeving for cold water lines Accommodates up to 1 in Copper or plastic Piping Makes measuring and cutting liner easier Holds 1 roll up to 6' in length Useful for contractors and wholesalers