Boardwalk Lie-Flat Mop Head is constructed from four-ply, premium yarn in looped-end design which sheds less lint, reduces fraying and unraveling. The durable, double-sewn tailband prevents tangles and provides more floor coverage with each stroke. The mop head is designed to lay flat on the floor, providing broad coverage. Built with a plastic, molded cap that contains a metal 1/4-in. threaded bolt head. Lie-flat screw in mop handle sold separately.