Package includes: 2 drain plugs. This drain plug is suitable for drain holes with an inner diameter of 34 mm to 40 mm. The matching silicone ring can adjust the size of the sink plug so that it fits better into the drain hole. If you want to use it for larger sink hole diameters, you can use the built-in rubber ring to enlarge the inner diameter of the sink plug. Built-in strainer: The improved stainless steel rebound core push-type drain stopper has an anti-clogging basket inside that can collect hair and prevent the drain from clogging, thus achieving effective filtering, unlike normal push-button drains. Fits most sizes of sinks, kitchen sinks, household sinks, bathtubs, and more. Easy installation: Plug and play. Quick installation. No other tools required. Simply remove the old rebound core and insert the new one. to complete the installation and use normally. High-quality material: The drain plug is mainly made of high-quality thickened copper materials. Robust, rust-proof, and crack-resistant. With its good bounce and rebound resistance, it drains and seals water quickly. Two-mode switch: The pop-up design of this drain strainer overturns the inconvenient way of drainage. It is a 2-in-1 bathtub plug and filter. Simply gently press the top cap down to switch between 2 modes, including holding water and draining water.