【Universal Design】: Bathroom sink drain kit fits sink hole diameter 1-1/2" (1.45 inch), US standard sink drain pipe. 【Easy to Install & Space Save】: Flexible & Expandable flexible drain pipe made install easy, no any tool is needed, and you can make the shape to whatever you want to save space. 【Anti-clogging and Anti-odor design 】: The sink trap kit designed with a pop up anti-clogging stopper, which can collect hair and prevent the drain from clogging up. And a component to prevent water from flowing back is also include, to prevent bad smell and water back.  【Material Safe flex-drain】: The pop-up drain stopper of the snappy trap kit is made of brass and 304 grade stainless steel, anti-clogging, anti-broken, anti-rusting, the rv sink drain pipe is made of ABS, which is stable and resilient, it can bend into any shape. 【Anti-Leaking】: The P Trap bathroom sink kit is designed with silica-gel gasket and no redundant connector, can prevent water from leaking. Please follow the instruction about how to install by the video or user manual, if anything not clear, please contact with us, we will offer 7 * 24 hours service.