This hammered bathroom copper sink is a beautiful piece of art, the rim is flat (1 wide), allowing it to be under-mounted, the bowl is 17" x 12". This bathroom copper sink has a standard 1.5" diameter opening and it does not have an overflow system. The hammer footprint is very visible. The reddish/oxidized texture is characteristic of copper when it is cooled down from red-hot temperature using cold water, technique that the copper-smiths use. The finish is antique-looking.This copper sink was made from one sheet of copper, raised with the artist hammer, there are no one welded joints. Suitable for your bathroom, it will add a unique home accent making it a very special focal point in your bathroom. The copper sheet is 16 gauge (0.05" thickness)."