This kitchen copper sink can be under-mounted or over-the-counter-mounted. In the first case the granite sits on top of the sink border, in the second one, the sink border sits on top of the granite. A unique addition to your farm-house style kitchen. It has a standard 3.5 diameter drainage opening in a single compartment. This hammered kitchen copper sink is a beautiful piece of art finished in weathered color, from the pictures you can see the spots the copper makes when heated and cooled down. It is slightly rounded at the bottom part. The border around the four sides of the sink is 2", which makes the bowl 27"x18"x9.5". Along your home decoration, this piece will add a unique touch to your kitchen making it a very special point of attraction. The gauge on this copper sink is 16. For more information about what gauge means in terms of thickness go to Bathroom Copper Sinks page"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