The P158 marble vessel sink is made from natural marble. The sink is carved from a large block of marble and hand-polished for a smooth, easy to clean finish. This sink has a black base with shades of white and orange veins running throughout. Since marble is a natural stone, the details will vary in color and pattern from sink to sink. The overall dimensions for the P158 are 16 1/2" x 16 1/2" x 5 1/2" and an 18" minimum cabinet size is required. As always, our stone sinks are covered under a limited lifetime warranty for as long as you own the sink.