This pipeline dredger uses high pressure to remove blockages from the pipe. Four suction cups can be used in different sizes of pipe, washbasin, sink, bathtub, floor drain, squat, toilet, etc. Blockage Type: Suit for: Hair, vegetables, accessories; Not suitable for: Alkaline urine, cement, hard objects. It can effectively remove hair, clothes, tea, vegetables and plumbing debris. 97/5000 Easy to use. Pull the handle about 15-25 times and repeat several times until the blockage disappears. Material: ABS gun body, rubberized head. Gun body size: (L) x (W) 27.5 x 28 cm. Weight: 850g Instructions for use: (1).Install the appropriate plug according to the size of the pipe diameter (2).Press the hand pump about 10-20 times until the air can no longer be pumped out to get the high-pressure gas (3)Block the pipe outlet and plug it. Pull the trigger to release the high-pressure gas (You can repeat this operation until you dredge the line.) ◆ Precautions: (1) The outlet opening must be immersed