Deckers Smooth Polished Black Granite Infinity Vessel SinkThis distinctive vessel sink includes an optional insert that creates an eye catching infinity style bowl. The insert can be used for a dramatic visual effect or removed for a more traditional look. Its sleek design is well suited for modern bathroom spaces. 18" Diameter x 3" H ( 1 2") Hand Carved Natural Black Granite Construction No Overflow Polished Interior and Outside Interior Dimensions: 16 1 2" Diameter ( 1 2") 1 3 4" Basin Depth Insert