Built-in Strainer Basket: Unlike normal strainer baskets, the drain plug has an anti-clogging basket filter inside, which can cleanly collect hair and prevent the drain pipe such as jewelry, rings, dirt, etc. Dual-Mode Switch: Pop-up design reverses conventional inconvenient drainage (e.g. base plug with chain)! Simply press lightly on the top cover to switch between 2 modes off (hold water) and filter (drain water). Universal Filter Basket: This product can be used for various types of pop-up strainer basket drains. 33.5mm in diameter High Quality Materials: These strainer baskets are mainly made of high quality stainless steel and brass. They have the properties of rust protection, crack protection and integral shaping. They have good rebound and rebound resistance and can quickly seal water and drain it with a press. Easy to Install Drain Strainer: Simply remove the old filter and insert the core bounce to complete the installation. Anyone can complete this process. Thickened expansion nut allows installation with bare hands. Pop-up window design is traditional, inconvenient drains around (eg simple plugs with chains)! Material: copper + stainless steel + silicone Size: inner diameter 33.5mm Closed height 40mm Package Content:1 Sink Drain Valve Tips: Since manual measurement is required, please allow a little error. Due to different monitors the color may vary slightly.