This refill for the O-Cedar® EasyWring™ Spin Mop & Bucket System uses deep-cleaning microfiber to remove and absorb tough dirt and grime. This high-quality refill is made of 100% microfiber for streak-free cleaning The EasyWring Spin Mop refill has soft, absorbent strings that will not scratch floor surfaces This mop refill is ideal for use in mopping all hard-surfaced floors The O-Cedar EasyWring Spin Mop refill is machine washable up to 10x