VIGO Square Shaped White Phoenix Stone Vessel Sink Phoenix Stone is a revolutionary blend of crystallized glass and stone resulting in a highly durable complex material Dimensions: 16.5-in. W x 16.5-in. L, Height: 5.5-in., Glass thickness: .625-in. Opaque white with modern flat edges, scratch-resistant Non-porous surface prevents discoloration and fading, stain-resistant, easy-to-clean surface Polished glass interior and exterior Above-counter installation, 1.75-in. standard drain opening cUPC certified, ADA Compliant, Limited Lifetime Warranty