BUILT-IN FILTERS: sink drain valve, There is a valve at the bottom that can close automatically against insects and odors. the sink stopper has an inner basket strainer which can collect hairs and prevent clogging of the drain, objects cannot enter the drain, such as jewelry, rings, dirt, etc. > UNIVERSAL SIZE: Bathroom sink plug It is suitable for drain holes with an inside diameter of 34 mm to 40 mm. Please pay attention to the installation size of your sinks before purchasing, to prevent the product from entering the drain hole. PREMIUM MATERIAL: Solid brass sink stopper of high quality and PC material. chrome surface effectively protects against corrosion and rust, good rebound and rebound resistance, quick sealing and draining can be achieved with just one click. WIDE USE: The drain plug can be used in the bathroom for sinks and bathtubs, as well as for the kitchen. EASY INSTALLATION - No tools required, can be easily installed with bare hands. all components can be easily removed. Due to the simple and convenient structure, even for women, the drain can be installed in a few steps completely without using the commercial sink instructions.