The bathroom copper sink you are looking at has a standard 1.5"" diameter hole and it does not have an overflow system, so you will need to get a non-overflow drain. The finish is in a natural copper color, which is mostly reddish with a few dark spots in the background.The reddish/oxidized texture is characteristic of natural copper when it is cooled down from red-hot temperature using cold water. The border is rounded, which allows it to be dropped-in.Hammering the red-hot copper is an ancient technique the copper-smiths do, where no sophisticated tools are used, just the furnace to heat the copper and a hammer to give it the shape. We got this bathroom copper sink from the skilled copper-smiths from Santa Clara del Cobre, Mexico. Suitable for your bathroom, it will add a unique home accent making it a focal point in your bathroom. The copper sheet is 16 gauge (0.05"" thickness).