This bathroom sink features durable porcelain construction and sleek circular design. The beautifully designed contemporary vessel sink will save space in your bathroom and on your counter and can also be semi-recessed into your counter. It is constructed from gorgeous porcelain for durability and easy cleanup. This sink features an overflow hole to prevent excessive filling, as well as a dock for faucet installation. • Porcelain Vessel Sink • Outside Dimensions: 18-1/2" x 18-1/2" x 8" • Porcelain • Limited lifetime warranty • Vitreous China Semi Recessed Sink Installation Instruction If you wish to semi recess the sink the cutout circle is 15" in diameter. On a 22-1/2" deep countertop the setback to the start of the cutout is 4".