This bathroom copper sink has smooth light brown patina on it, it also has a standard 1.5 diameter hole and it does not have an overflow system. It is designed for over-the-counter mounting because its rim is rounded. This hammered bathroom copper sink is a beautiful piece of art. From a copper sheet the wise artisan hands transform it into this unique piece where the hammer footprint is very visible.This copper sink was made from one sheet of copper, raised with the artisan''s hammer, there are no one welded joints.Hammering the red-hot copper is an ancient technique the copper-smiths use, 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 very special point of attraction in your bathroom. The copper sheet is 16 gauge (0.05" thickness).IMPORTANT NOTE: The patina can be damaged faster if toothpaste stays for long periods of time on the sink surface, because of this, washing it after brushing teeth is recommended."Hand-hammered and mold-cut to perfectionHandcrafted by Mexico''s Finest ArtisansWe include 1" long brown screws in all of our hammered copper switch plates