Herbeau | 18-1/8" "Rhone" Round Bowl in Weathered Copper External Dimensions: 18-1/2" x 7-7/8" D Internal Dimensions: 16" x 7-1/2" D Cut out Size: Approx. 16-3/4" Includes 1-1/2" Grid Strainer (model 4521) Can be undermounted with standard clips (not included) This item is in very good condition. It was a showroom sample. Minor scratches and staining.