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 been using for a long time are harmless and environmentally friendly. Easy installation: Black sink drain is suitable for sinks without overflow. Sink plug with standard G1" connection, 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 wastebasket with just one click. No more worries about stuck and leaking sink plugs. Solid structure: Heavy-duty construction drain valve, solid brass compression spring, which has good rebound and rebound resistance, quickly seals the 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 valve is not only suitable for families but also for various bathrooms and toilets such as restaurants, bars and hotels. This drain valve sets the highest standards in terms of design and innovation and blends harmoniously into every sink, basin, sink and sink unit without overflow. Quantity delivered: 1 piece,"