300 psi air compressor 1,19mm steel cylinder,large flow rate 2, With pressure gauge 3,Spend 5 minutes 4, Inflate tryes 300PSI Air Compressor1, Ideal for saloon car,mini car tires,bicycle tires2,Diameter of steel cylinder is 19mm3,With pressure gauge4,10ft(3m) electric cord5,with 20 inch air hose6,Operated by 12V or 24V DC (optional)7, With 2 nozzle adapters and sport needle included