Product Details: US Part Number: GNX11016 Cabinet Size: 21" Waste Outlet Diameter: 3 1/2" Faucet Hole: None Dimensions: 16 7/8"x16 7/8" Bowl Size: 15 5/16"x15 5/16"x7 7/8" Number of Bowls: 1 Type of Material: 16 ga Stainless Steel