Universal Interface: Universal 4 Diameter Sink Plug, Plug For All Standard Drain Plugs, Bathroom Plugs, Sink Plugs, Drain Plugs. Waterproof And Waterproof: Pop-Up Sink Plug Has A Good Rubber Sealing Ring And 4 Side Wings, Which Can Be Perfectly Fixed In Place Without Shaking And Preventing Peculiar Smells. Corrosion Resistance: The High Quality Drain Plug Is A Perfect Fit For Your Existing Device .It Adopts Anti-Calcification Material And Anti-Limescale Layer To Ensure Good Durability. Good Materials: The Body Is Made Of Sturdy And Environmentally Friendly White Plastic, Chrome-Plated Brass, Anti-Rust, Easy To Clean And Prolong The Service Life. Product Size: Brass Head With A Diameter Of 4, Adjustable In Height, With A Lifting Range Between 6.5 And 9, Simple Installation, Can Be Fixed With A Nut, And Can Be Adjusted At Will Within The Range Of Expansion And Contraction.