330mm inlet hose set with 1/4" pneumatic connection Working pressure 70-170psi (5-12 bar) Recommended pressure 150psi (105 bar) 3 x pad attachments, diameters: 60, 120, 150mm After connecting the dent puller to the air supply the puller creates the vacuum and sucks firmly to the body, the sliding hammer is then used to pull out the dent