Delta Faucet 72174, Chrome All metal construction push pop Tailpiece chrome plated for all finishes For use with sinks with overflow Best paired with square featured lavs With overflow holes - for use with lavatory sinks with built-in overflow drain holes Plastic Less overflow holes - for use with lavatory sinks less overflow drain holes Fits sink with standard 1 5/8" drain hole size 2 11/16" square top flange All metal construction push pop Tailpiece chrome plated for all finishes