Kitchen Sink is made of advanced high-end quartz composite material that has the look and feel of real stone and is thick, strong and durable. The quartz sink is a quieter kitchen sink. The thick stone eliminates vibration and noise when using the sink. The high-end material has hard, smooth, non-porous surfaces that reduce dirt and where dirt can hide, making kitchens cleaner, does not scratch and effectively protects your hands.The rounded corners and ultra-smooth surfaces makes the sink easier to wipe clean, eliminating accumulated time. Exterior Dimensions: 25"x22"x9.65"(Minimum cabinet is 28 inch), Interior Dimensions: 22.2"x17.44"x8.94". Standard 3-1/2" drain opening, that fits the most common garbage. Package included:1 x Sink,1 x Drying Roll-up Rack,1 x Baskets Strainers Assembly,1 x Bottom Grid,1 x installation clips, 1 x cutout template and installation Guide.