Double Layer Tempered glass sinks are five times stronger than glass, .75in thick, and can withstand up to 350 F degrees, can resist moderate to high degrees of impact and are stainproof. This package is ready to install; it includes a 100% solid brass chrome plated pop up drain, mounting ring and silicone gasket. Measures 16.5 in. dia. x 6 in. deep x .75 in. thick.