This bathroom sink features durable vitreous china construction in a sleek rectangular top-mount design. With a contemporary form, this vanity sink is constructed for durability and easy cleanup. This sink features an overflow hole to prevent excessive filling, as well as a dock for faucet installation. • Top-mount Vanity • Outside dimensions: 21-1/4" x 18" x 7-1/2" • Inside dimensions: 16-1/2" x 11-1/4" x 5-1/2" • Vitreous China • Limited lifetime warranty • Minimum Cabinet Size: 23”