Scandvik Mirror finished 18/10 stainless steel sink. Not recommended for exterior use due to the reflective nature of the polished stainless steel. These basins are NOT equipped with a fastening system. Typically installed with a sealing adhesive applied under the flange. Diameter: 11-5/8 Depth: 5 Flange: 3/4, profile A Drain Opening: 2-1/16 Fastening System: No Shipping Weight: 5 lbs.