ABS PERFECT COMPATIBILITY - The bathroom sink drain kit fits suitable for bathroom sinks with drain holes 1-1/4", 1-1/2", 2'' diameter. Both no overflow bathroom sink and overflow bathroom sink can be used. 【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. PREMIUM MATERIAL - The universal bathroom sink drain pipe kit is constructed of stainless steel + PP +ABS, which can prevent corrosion and rust, it's extremely tough, durable, anti-cracking, and effectively prevents water leakage. 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. 【Anti-Leaking】: The 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 PERFECT COMPATIBILITY - The bathroom sink drain kit fits suitable for bathroom sinks with drain holes 1-1/4", 1-1/2", 2'' diameter. Both no overflow bathroom sink and overflow bathroom sink can be used.