FINNER FILTER HOLES: This drain plug has an anti-clog basket strainer inside, the filter is more sealed and more effective in preventing the drain from clogging, so that no objects such as rings, jewelry, dirt, etc. enters the drain. TWO SEALSOptimized and improved drain plug, increased to 2 seals, it is suitable for drain holes with an inner diameter of 34mm to 40mm to avoid common problems such as inconsistent sizing and poor fit. Suitable for most sinks. RUST AND CORROSION PROTECTION: The inner core of the drain plug is made of brass, the spring is thickened and the service life is extended. The basket is galvanized with ABS plastic to effectively prevent rust and corrosion caused by household sewage and oil stains. EASY TO USE: No need to replace drain parts, just remove the copper core from original, insert our drain plug, gently shake the drain plug to fit the drain hole, press the switch to stop water storage and drainage. CLEANING AND ODOR PREVENTION: The detachable basket design, remove the plug and remove the basket, you can easily remove foreign objects, it can also prevent sewers from clogging and prevent special odors.