Diameter 3.5 - 4.8 cm Drain Filter: This pop-up filter basket is a universal stainless steel product, pop-up drain plug can be used for various types of sink drains. Drain strainer suitable for drain holes with an inner diameter of 34 mm - 40 mm. Note: Make sure your drain is straight or larger than 4.2 cm.Anti-clogging strainer: 2022 improved 2-in-1 drain strainer and stopper. Compared to traditional sink plugs, our pop-up drain plugs are equipped with an anti-clogging basket filter. In addition, things like rings, coins, or dirt will not get into the drain. Perfect sink line parts, suitable for bathtubs, sinks, kitchen sinks, and more.Premium material: This sink plug is made of high-quality stainless steel and copper materials; Pop-up sink plugs effectively prevent cracking, corrosion, and rust. They feature good rebound resistance, quickly seal, and drain water with a single press. This helps retain water and prevent leakage. Suitable for kitchens, bathrooms, sinks, and spare sinks.Two-Mode Switch: Pop-up design reverses the traditional, inconvenient sink plug (e.g., basic plug with chain)! Simply gently press the top cap down to switch between two modes: stopper (to hold water) and strainer (to drain water).