(2) pieces Single Layer Tempered glass sinks are five times stronger than glass, .5in thick, can withstand up to 350 F degrees and resist moderate to high degrees of impact. They are also stain proof. This package 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 .5 in. thick.