Premier Copper Products VR16MPDB Round Miners Pan Vessel Hammered Copper Sink, Oil Rubbed Bronze Uncompromising quality, beauty and functionality Inner dimensions measure 16-Inch by 16-Inch by 4-Inch, outer 21-Inch by 16-Inch by 4-Inch Copper material gauge: industry best (17-Guage or 0.0450-Inch) Drain size is 1.5-Inch, non-overflow Handmade, 100-Percent recyclable and made of 99.7-Percent pure recycled copper