[Universal Size] Pop-Up Sink Drain for different types of pop-up filter basket drains. There are three built-in rubber rings, which can be adjusted according to the size of the drain hole. Fits drain holes from 26mm to 42mm (1.02 to 1.65 in) ID. All new design drain plug: Bathroom sink strainers are more convenient and practical than ordinary sink stoppers. The upgraded stainless steel drain plug has an anti-clog basket inside to prevent the drain from getting caught in hair. In addition, it comes with non-slip rubber pads and two large and small rubber rings to prevent water leakage. Basin Sink Stopper is easy to install: Anyone can install the pop-up sink drain plug, because it has a simple structure and does not require any tools, just remove the old insert. If you want to use it for larger sink hole diameters, you can use the built-in rubber ring to increase the inside diameter of the sink plug. Drain Filter Stopper: The rubber ring around our built-in basket keeps it stable and won't tilt when pressing the button. There is a large non-slip pad under the core, which can be perfectly matched with the sink drain under the action of water pressure. So you don't have to worry about waterproofing and drainage. High quality material: The drain plug is mainly made of high quality zinc alloy material, which is rustproof and crack resistant, and is integrally formed. Good resilience, fast drainage, fast water tightness.