Each pad is designed and constructed to provide thorough and continuous contact with floor surface. Open web construction enables easier dirt pick-up and permits faster pad cleaning under running water. All pads are usable on both sides with equal effectiveness. The specific types of fibers and abrasives used are related to the aggressiveness required for the particular floor maintenance procedure. All floor maintenance pads are color coded for easy identification. Manufactured for use with machines that operate at 175-300 RPM.