✅ 80% Solid granite, Silgranit material features the touch and feel of natural stone ✅ Required outside cabinet: 21" ✅ Extremely hygienic, does not absorb odors or bacteria ✅ Bowl depth is 9" ✅ Limited lifetime 80-percent rock hard granite Bowl depth 9-Inch Outside dimensions 17 1/2 inches by 17 inches Anthracite Drain width 3-1/2 inches