• Multifunctional: the drain plug has 3 functions: water retention, filtering, and odor isolation. • Multiple sealing layers securely retain water while effectively controlling kitchen drain odors. • Leak-proof and clog-proof, prevents hair and kitchen waste from accidentally clogging sewer pipes. • Universal standard size: the drain plug is suitable for standard diameters of 76 to 81 mm, depth > 50 mm. • High quality: the plug basin is made of SUS304 stainless steel and heat-resistant ABS material. • Pop-up drain filter: press the sink plug once to seal the water and press again to drain it.