"The Q Industries SuperFlow Mega MV-90 heavy-duty air compressor is ideal for big rig trucks with 35in. or larger tires. It delivers fast inflation, obtaining its power directly from the vehicle battery using the alligator clips provided. This unit is great for owners who have a semi-truck, 4 x 4 off-road truck or other vehicle with large tires. Volts 12, Dimensions L x W x H in. 11 1/4 x 7 7/8 x 9, Portable or Stationary Portable, Amps 45, Stage Single, Max. PSI 120, CFM at 90 PSI 3.71. Powerful 12V, 45 Amp motor Produces 3.71 CFM @ 90 PSI Powers directly from the vehicle battery Inflates a full-size truck tire to 25-35 PSI in under 1 1/2 minutes Quick-release 24ft. coil hose 5-ft. power cord Convenient nylon carry bag Includes 3 adapter nozzles for inflatables"