High-quality Build-In Strainer The cover features A-class brass and multilayer chrome finish, efficiently resistant to scratches, corrosion, and rust. Durable and high-quality silica gel help to store water well and has No Overflow. Special Design Unlike regular push-button drain, this sink drain has an anti-clogging basket strainer inside that neatly collecting hairs and prevents the drain from clogging up, stuff that will not get into the drain, such as jewelry, ring, dirt, and so on. Two Mode Switch Improved extra stable compression spring is made of pure brass with good rebound resistance. Just press the top cap down gently to switch 2 modes stopper (to keep the water) and strainer (to drain off the water) Easy Clean All components can be easily removed for easy cleaning. Suitable for washbasin, sink, and kitchen bathroom, The drain stopper is suitable for sink with a hole in 37mm/1.46inch-42mm/1.65inch. Please ensure the hole size before purchase. Easy To Install Drain Filter Just take out the old one and insert the bounce core to complete Install. Anyone can complete this operation. Without the use of tools.