Material: Black sink drain without overflow Made of high quality brass, they are durable and not easy to rust.All materials can guarantee the quality.The materials we have used for a long time are harmless and environmentally friendly. Easy installation: Black sink drain fits sinks without overflow.perfect for all commercially available sinks.Can be installed completely without tools in just a few steps!Easy to open and close.Smooth push-button operation with watertight seal. Click-clack function: thanks to the pop-up mechanism, you can open and close your new trash can with just one click.No more worries with stuck and leaking diverter caps. Solid Structure: Robust construction drain valve, solid brass compression spring, which has good rebound and rebound resistance, quickly seals water and lets it flow out with just one press.Brand new and high quality pop-up drain plug with overflow hole. Wide application: This drain faucet is not only suitable for families but also for various bathrooms and toilets such as restaurants, bars and hotels.This drain faucet sets the highest standards in design and innovation and fits harmoniously into every sink, wash basin, sink and sink cabinet without overflow.