Features 1. Compatibility: Our sink stopper is only suitable for 1.29~1.65 inch(3.3~4.2 cm) diameter pops-up drain strainer. 2. High Quality: The bathtub stoppers is made of premium ABS plastic copper, and rubber seal rings. It is strong, durable, anti-rust, anti-cracking and effectively prevents water leakage. 3. Build-in Anti-clogging Basket: This sink drain stopper has a build-in strainer anti-clogging basket inside that neatly collecting hairs and prevents the drain from clogging up, stop stuff getting into the drain, such as jewelry, ring, dirt, etc. 4. New Upgrade Design: The sink stopper has triple functions of odor and insect prevention, seal upper cover to prevent odor overflow, self-closing deodorant core to isolate odor and bed bugs, automatic opening when water is present, and automatic closing when no water is present to prevent backflow. 5. Easy To Installation: No tools are needed, just take out the old one and insert the new sink plug to complete it. Anyone can install the pops-up drain strainer because of its simple structure. Perfect match with your sink. Specification Material: ABS Color: Silver Size: 6 x 6 cm Weight: 41 g Package Include: 1 Sink Stopper