Boardwalk Cotton Lie-Flat Mop Heads are made with absorbent, natural cotton fiber and are designed for general mopping on a variety of floor surfaces. Constructed from four-ply, cut-end yarn, the mop heads are 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. - Absorbent, natural cotton fiber for general mopping. - Four-ply, cut-end yarn. - Lies flat on the floor for broader coverage.