Publisher: VIVIDA. It can only be used with male threaded sink drain or adapters, and cannot be compatible with pipes without threads. 【EXPANDABLE & FLEXIBLE P-TRAP】Sink drain pipe adjustable length range from 11″(280mm) to 31.5″(800mm); 1-1/2″ nut ID is 1.77″(45mm); 1-1/4″ nut adapter ID is 1.53″(39mm).