Sinkology SB101-19AC Bell Drop-in Handmade Copper Bath Sink with 4" Faucet Holes and Overflow, 19", Antique Copper Think differently about kitchen and bath design, design with the sink in mind Handmade from 18 gauge Pure solid Copper Standard drop-in design, 4 inch faucet holes and overflow included Works with standard bathroom sink Popup or grid drains Sinkology Copper sinks will not turn Green with typical indoor use.Drain size: 1.50 inch