Universal Size: The sink drain plug fits drain holes with an inner diameter of 34mm-40mm (1.34-1.57 inches), compatible with various sink types including kitchen sinks, bathroom sinks, and bathtubs. The included silicone ring allows adjustable sizing for a secure fit. Please measure your drain hole before purchasing.Pop-Up Drain Valve: This improved pop-up drain plug features a simple press-to-open-and-close mechanism. Press the top cover to switch between sealing and draining modes. The design ensures stable operation without wobbling. Enhanced with a multi-layer sealing ring, it provides a tight, leak-proof seal and prevents water leakage caused by worn or faulty traditional drain mechanisms.Built-in Strainer: Unlike basic stoppers, this drain plug includes an integrated anti-clog basket strainer that catches hair, debris, and small items to help prevent blockages. All components are fully detachable for easy cleaning and maintenance.High-Quality Materials: Constructed from durable, thickened ABS plastic with an electroplated brass core, this drain plug resists rust and corrosion. It maintains structural integrity over time, ensuring long-term leak-free performance.Easy Installation: Pack of 2, no tools required. Simply remove the old stopper and insert the new plug for immediate use. Installation is quick, straightforward, and suitable for most standard sink drains.Note: Measurements are manually taken and may vary by 1-3mm. Color may differ slightly due to monitor display settings. Actual product may vary slightly from images.