... together with car 3.For car tire,balloon,air bed 4.12v car power electric balloon air pumpmicro ... cigarette socket DC 12V in car, then screwing the air nozzle on valve, starting generator, thus , inflation ... keep the car engine working. This type of air pump (compressor ) is fit for big tyres.The ... It is Water Proof.For car tire , balloon , air bed , water bed . Equip four kinds inflator connnector. ...