2-in-1 Bathroom Sink Drain Kit: Consists of stainless steel drain pipe and flexible drain pipe. Suitable for diameter 40-50 water pipes10 Minute Quick Installation, No Tools Required: Flexible, expandable flex drain pipe is easy to install, no tools required. Fits perfectly on wall drain pipes without cutting. More convenient than traditional multi-section P-shaped trap design.Anti-clogging and anti-odor design: The sink trap set is designed with a pop-up anti-clogging plug that collects hair and prevents drain pipes from clogging. In addition, it contains ingredients that prevent water from flowing back, preventing odors and backflow.Material safety and space saving: Compared with ordinary products, the expandable P-type trap does not take up space under the cabinet. Easily adjustable to save more space and facilitate cupboard storage. The sink drain pipe is made of PVC, which is stable and elastic and can be bent into any shape.Leak-Free: No plumber's putty required, the bathroom sink drain kit comes with a silicone sealing gasket to prevent leaks. Please refer to the pictures to complete the installation.