The ShowerShroom Strainer is a modern drain protector designed for shower stall drains. The ShowerShroom patent-pending design is made to work with virtually any standard stand-up shower stall drain. ShowerShroom is made out of high grade ("ultra stainless") material making it virtually resistant to corrosion and discoloration. ShowerShroom is designed to nearly catch human and pet hair without disrupting the flow of water. ShowerShroom is also compatible with most standard bathtub drains. Easy to use. SHIPPING IS FREE via USPS and I ship within 24 hours of payment. Thanks for looking!