The clic-clac drain valve does not have an overflow connection. Mount it on sinks that do not have an overflow.This drain valve is not only suitable for families but also for various bathrooms and restrooms such as restaurants, bars and restaurants. hotels. Specification: Material: brass and zinc alloyInstallation size: G1Sealing material: siliconeOverflow: Overflow Free Our drain set is constructed from solid brass to ensure long lasting quality and durability. -Matte Black The elegant simplicity of the drain valve in matte black makes it the icing on the cake in a modern bathroom. 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 an 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 bin with just one click. No more worries with stuck and leaking drain plugs. Solid structure: Heavy duty construction drain valve, solid brass compression spring, which has good rebound and rebound resistance, quickly seals water and leaves it flow with one squeeze. 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 restrooms such as restaurants, bars and restaurants. hotels. This drain tap sets the highest standards in terms of design and innovation and fits harmoniously into every washbasin, sink, sink and sink cabinet without overflow.