LANGPAI Brass Pop Up Drain With Overflow Bounce Style Stopper Gold Finish Durable solid-brass construction;expertly crafted. Multi-layer finish treatment. Top of drain size 2 3/8",threaded size 1 5/8",waste pipe size 1 1/4",all in diameter.? Easy bounce operation water-tight seal. Easy to install,Instructions,hardware & US-standard fittings included.