Universal Kitchen Sink Strainer: Designed to be compatible with standard American 3-1/2 inch drain holes, it fits openings with a width of 2.95"-3.42" and a depth greater than 1.7". This kitchen sink drain has been professionally tested to meet universal American standards. Please measure your sink's dimensions before purchasing. Easy Use & Service: This kitchen sink strainer is easy to use and requires no installation. Simply place the product into the sink drain hole to enable water storage and drainage by pressing it. If you have any questions, please . Upgraded 3 in 1 Kitchen Sink Drain Strainer: Combines a sink drain strainer, kitchen sink stopper, and odor isolation feature. Press the eject button to retain water for washing and press again to drain, while preventing food scraps or crumbs from entering the drain. A reliable anti-clogging aid and a must-have accessory for kitchen sink setups. Anti-Clogging Strainer Basket: The sink drain strainer basket is constructed from high-quality 304 stainless steel for extended durability. Features a brass pop-up core for reliable performance. Effectively filters kitchen residue, resists clogging, and helps manage sink waste without direct hand contact. Fast Drainage & Odor Prevention: Large drainage holes around the perimeter enhance water flow efficiency, reducing wait time. Multiple layers of rubber gaskets provide protection against odors, backflow, and leaks from the sewer system, helping maintain a clean and fresh kitchen environment.