This Rohl 6737-68 is a round single bowl that belongs to the Allia collection. It comes with a biscuit finish. This Rohl single bowl can also be purchased in white (00) and matte black (63). It can be installed either as an undermount sink or as a drop-in sink. This round sink measures 18 1/8" in diameter. Its overall depth is 7 1/4" while the bowl's depth is 5 7/8". Please see the specification sheet for more details about the sink's measurements. Rohl's 6737-68 round single bowl has a 3 1/2" standard drain opening. It is resistant to abrasion, acid, and alkali. It is also resistant to stains and thermal shock. Its weight is 35 lbs. This product is covered by a 1-year warranty on manufacturing defects and a 10-year warranty on fading or staining. The House of Rohl has been in the business since 1983. They have reached success by providing distinctively different faucets and fixtures that define real luxury. To create superior products that will enhance your way of living is Rohl's goal.