Westbrass RFT-201-CP Rapid Fit Plastic Tip-Toe Bath Mechanism, Chrome Push down on the cap to close and slow the drain of water; push again to open For use with a tub shoe drain with 3/8 in. stem hole (consider RFT-202-CP for 5/16 in. stem) Includes flat rubber sealing washer Classic and versatile polished chrome finish Heavy-duty plastic cap with solid brass stem for stability