[Chrome Plated&Brass Material] With durable construction, the solid brass bouncing core has good bounce and rebound strength, and it can seal the sink hole or drain water quickly. [No Leak&Pop-up Design]Sealed up tight with double rubber seal ringsthere's no leaks or drips underneath. If you want to drain water, just need to push the button of sink stopper. Easy and convenient. [Overflow Hole Design] With 69mm sink hole cover, this bathroom plug stopper can prevent overfilling, so its a good household helper for you. [Easy to Install&Clean] With 16mm/0.6inch bottom screw, easy to screw on and off.And the slotted plug bolt set is distachable, so its convenient to clean. [Hole Fitting] The bathtub drain stopper is suitable for sink with hole in 2.72inch and drain in 1.7inch(the above-mentioned size is diameter). So please ensure the hole size before you place orders. Specification Material: brass&chrome plated Diameter of sink hole cover:69mm Suitable diameter of drain:43mm Diameter of plug bolt: 8mm Length of plug bolt:28~38mm Proper temperature: -5C~+100C