Frost King SP514XB6 Self-Sealing Pre-Slit Tubular Polyethylene Foam Pipe Insulation, 1/2" Thick Wall, Brown, 6-Feet Lengths Insulating tubes made of closed cell polyethylene foam or rubber, these foam pipe covers will slip over your pipes quickly and easily 1/2 inch thick wall; bulk 6 feet length For 2 inch Copper or 1-1/2 inch iron pipes Prevents pipes from sweating, dripping and freezing Slip onto pipes quickly and easily