"This Esco Yellow Jackit Hydraulic Bead Breaker Kit breaks even tough beads in seconds with 10,000 lbs. of force. Length in. 3.75, Typical Application Single, two, three-piece truck tires and rims, Max. PSI 10,000. Works on single, two- or three-piece truck tires and rims, including some new style wheels Hydraulically clamps on wheel Pump operates on air pressure of 80-125 PSI 3.75 stroke Includes bead breaker, pump and hose with coupler"