This includes a 3-in-1 design kitchen sink strainer that combines water storage, draining and filtering functions. Made of 304 stainless steel material and ABS basket, it has waterproof, oil-resistant, corrosion-resistant, scratch-resistant and high-temperature-resistant properties. The innovative pop-up plug function allows you to easily switch between holding water in the sink and quick draining with just a gentle press, while the open drain pipe allows for filtering debris without slowing down the water flow, preventing blockages. The kitchen sink drain stopper is compatible with standard 3-1/2 inch drain holes, fitting most sink holes with a diameter of 3"-3.2" and a depth greater than 2".