This kitchen copper sink has a standard 3.75 diameter hole at the front part of it. It is a single bowl hammered copper sink, it is finished in weathered copper color.The copper sheet is 14 gauge (0.064" thickness). The border around varies between 1"-1.5".Along your home decoration, this piece it will add a unique touch to your kitchen making it a focal point. The patina can be damaged if any abrasive substances stay for long periods of time on the sink surface, because of this, washing it after usage is recommended; besides that, no more maintenance is required."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