"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. Dimensions L x W x H in. 11 1/4 x 7 7/8 x 9, Portable or Stationary Portable, CFM at 90 PSI 3.71, Stage Single, Amps 45, Volts 12, Max. PSI 120. 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"