The shower drains are made of premium 304 stainless steel, to ensure it is as corrosive and rust resistant to ensure a long life span. The low-profile drains are slopped to achieve the best fit and function in a tile or stone installation. Drains provide a great solution to curbless shower entry, with no obstacles. Comes with a high-quality threaded adaptor with a rubber o-ring that also helps in adjusting the height of the drain; the adaptor is compatible with most 2” PVC, ABs, and cast-iron flanges. Other bonuses - a lifting hook is included to remove the grate from the linear drain, a hair and debris lift-out strainer is also included to capture unwanted objects to flow through the outlet and avoid clogging the pipe.