Two-Way Switch: 2-In-1 Tub Stopper And Strainer, Pop-Up Design That Overturns The Traditional And Inconvenient Way Of Draining. Just Gently Press The Top Cover To Switch Between 2 Modes: Plug (Water Reservoir) And Filter (Drainage). Thick Silica Gel Gasket, No Glue Needed, Oxidation Resistance And Leak Proof. High Quality Material: The Pop Up Sink Drain Is Made Of Explosion-Proof And Anti-Explosion Grade Stainless Steel. -Crack, With A Durable, Flat And Pleasant To The Touch Finish, Can Resist Rust, Corrosion And Tarnishing. Heavy Duty Basket Stopper: Integrally Molded And Seamless, The Rubber Ring Around Our Basket Built-In Strainer Maintains Stability, It Doesn'T Tilt When You Press The Button, So You Don'T Have To Worry About Leaks And Drainage. Built-In Strainer: Unlike Push-Button Drains Ordinary, This Sink Trap Has An Anti-Clog Basket Inside Which Cleanly Collects Hair And Prevents The Drain From Clogging, Objects That Do Not Enter The Drain, Such As Jewelry, Rings, Dirt And So On. Easy To Install: Anyone Can Install The B Pop-Up Wave Thanks To Its Simple Structure, No Tools Are Needed, Just Remove The Old One And Insert The Bounce Core To Complete It. Two Models: Inner Diameter 34-35Mm Or Inner Diameter 37-38Mm, Which Can Meet Your Different Needs.