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 tailbands. Heavy-duty, 5" vinyl mesh headbands. Launderable in a mesh bag. Use with clamp or Gripper? mop handles, (sold separately). 12 mop heads per case.