12" natural cellulose sponge is extremely absorbent, durable and leaves floors drier. Handle contains internal wringing mechanism to prevent bent wires and pinched fingers. Heavy gauge steel frame with soft grip on wringer level. Firm-Grip™ steel ribbed handle with swivel hang cap will not crack, warp or splinter; ribbing eliminates handle slippage. Swivel hang cap helps keep janitor closet clean and organized.