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-in. vinyl mesh headband. Launderable in a mesh bag. Use with clamp or gripper style mop handles (sold separately). 12 mop heads per case