Flexible and adjustable water pipe that can be used for kitchen and bathroom waste water drains. Before purchasing the product, confirm that the connection outlets of your sink drain are 1-1/2" or 1.78 inches (45.2mm). With its flexible and expandable structure, it is an easy installation and saves you from leaks and bad odors from your old sink pipe. In order to avoid bad odor from the drain, after opening the pipe to its maximum length, fold it from the bottom to ensure that water remains in the pipe. Do not forget to attach the two original gaskets and fixing clips included in the package. In addition, two more spare gaskets will come out of the package.