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.