Product details:

Stainless steel fange and strainer features a lift and lock stopper design that seals tightly. Available in multiple fnishes to match your kitchen and/or bar/prep sink fxtures. Stainless steel drain body with brass locking ring and tail piece nut Can only ft sinks 1-3/16" thick Fits standard sink drain openings that measure 3-1/2" to 4" in diameter