Effective drain cleaner: The drain cleaner is effective for removing dirt and debris from your sink or drainage system. Suitable for most indoor and outdoor pipes, such as shower drains and drain pipes, drainage pipes, flush pipes. Robust flexible steel rod: The flexible drain cleaner is made of 6.5 mm thickened manganese steel, which is strong enough to penetrate twisted pipes. The spiral design makes it easy to catch hair and other debris. A length of 10 m can meet most needs. Adjustment screw: The adjustment screw allows you to adjust the length of the rod as needed. Turn clockwise to loosen the screw and remove the rod. Turn counter-clockwise to tighten the screw and remove the rod. Note: The screw must be tightened to keep the metal rod connected to the handle housing. Easy to use: Insert the probe into the pipe, loosen the adjustment screw and pull the flexible rod until the probe reaches the blockage. Then tighten the adjustment screw and roll the handle as quickly as possible to catch the blockage. Finally, slowly pull back the rod.