Universal Size: The sink drain plug fits drain holes with an inner diameter of 34mm-40mm (1.34-1.57 inches), suitable for various types of sinks including kitchen sinks, household sinks, and bathtubs. The included silicone ring allows size adjustment for a secure fit. Please confirm your drain hole size 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 multi-layer sealing ring provides a tight, leak-proof seal, preventing water leakage commonly caused by failure of traditional sink strainers. Built-in Strainer: Unlike standard stoppers, this drain plug includes an integrated anti-clog basket strainer that captures hair, debris, and small items to help prevent blockages. All components are fully disassemblable for easy cleaning and maintenance. High-Quality Materials: Constructed with durable thickened ABS and an electroplated brass core, this drain plug resists rust and corrosion. Its solid build ensures long-term reliability without cracking or leaking. Easy Installation: Pack of 2, no tools required. Simply remove the old plug and insert the new one for immediate use. Quick, tool-free setup makes replacement fast and hassle-free. Note: Measurements are manually taken and may vary by 1-3 cm. Color may vary slightly due to lighting and screen display differences. Actual product received may differ slightly in appearance.