Unisan Super Loop Head - For high-volume usage. Blend of premium four-ply cotton/synthetic yarn covers more floor area by absorbing up to seven times its own weight. Looped ends reduce unraveling and linting. Durable double-sewn tailband. Heavy-duty, 5"" vinyl mesh headband. Laund erable in a mesh bag. Use with clamp or gripper style mop handles (sold separately). 12 mop heads per case.