Mop refill is designed for use with a Saddle or Jaws type handle because of its narrow 1 headband. Natural blend combines moisture-hungry rayon and cotton fibers with the abrasion-resistance and strength of polyester fibers. The polyester fibers add durability and fight bacteria. Mop refill absorbs six times its weight with no break-in period and is made with a percentage of recycled material.Genuine Joe Cotton Blend Mop Refill