[New design, wide application] This drain fitting is optimized and improved based on standard drains. It fits drainage holes with an inner diameter of 34 mm - 36 mm (1.34 - 1.4 in), helping to avoid common issues such as size inconsistency and poor fit. Suitable for most household sinks. Made of stainless steel and brass, this drain fitting is constructed in one piece to effectively resist rust and corrosion from household wastewater and oil. Includes a thickened silicone seal. Quick installation in 3 seconds: simply remove the existing drain plug by hand, insert the new sink plug, and press the spring switch to complete sealing and filtering. No tools required—installation and removal take only 3 seconds, offering greater convenience. Pop-up valve design prevents sewer odors and blockages. The plug remains stable when pressed and does not tip over, ensuring reliable sealing and easy drainage. Two black silicone seals enhance stability and improve leak resistance. Built-in filter basket helps prevent clogs by trapping debris and prevents small items such as jewelry and rings from entering the drain pipe. Material: Stainless steel. Color: Gold. Package Contents: 1 x sink plug. Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.