Strong waterproof: the universal drain valve uses anti-twist gasket and thickened silicone sealing ring, the pop-up drain valve creates a more leak-proof and leak-proof design, preventing water leakageduring cleaning.The sink cover with ejector valve slides flexibly with a silicone sealing ring, completely solving the problem of water leaking from the drain plug! Material: the universal pop-up clamshell sink drain kit is made of zinc alloy and solid brass compression spring to maintain good rebound and rebound capacity, durable, stainless steel and resistant to corrosion.corrosion.The materials and design adapt perfectly to the furniture, equipment and decoration of any bathroom. Easy to Use: Heavy-duty drain valve construction, heavy-duty brass pressure spring with good recoil and recoil capability to quickly seal water and drain it with just one press.There are no more problems with the Seka sink and leaks. Easy to install and clean: The universal drain valve is suitable for sinks without overflow.All parts can be disassembled quickly and easily, allowing for quick and hassle-free hygienic cleaning once the screw on the top is unscrewed.Installed in just a few steps without additional tools, it is a good helper for you and a great accessory for your bathroom sink. Wide Application: Smooth matte black finish is not only suitable for home use, but also for restaurants, hotels, bars and other public places, making it a great replacement accessory for rinsing.Fits seamlessly into any overflow sink, vanity, countertop and vanity.