16 Gauge Premium T-304 Grade Stainless Steel (18/10 Chromium/Nickel) Will Never Rust Or StainCommercial Grade Brushed Finish - Easy To Clean And Long-Lasting. Unlike Satin Finish, Our Brushed-Finish Hides Scratches And Matches Well With Your Kitchen Appliances.Heavy Duty Sound Proof Coating And Thick Rubber Padding - Minimizes Noise And Reduces CondensationZero Radius - Sharp Inside Corners Accentuate The Modern LookExterior Dimensions: 23" (Wide) X 18" (Front-To-Back)Interior Dimensions: 21" (Wide) X 16" (Front-To-Back)Bowl Depth: 10"Minimum Base Cabinet Size: 25"Standard 3.5" Drain Opening Will Fit Any Garbage Disposal Unit.Included In Box: Sink, Cut-Out Template, Mounting Brackets, Rinse Grid, Basket Strainer