Fast inflation, one tube for multiple uses, suitable for bicycles, electric vehicles, motorbikes, high-pressure bottles, etc. 1. base anti-slip pad: foldable and larger base, more stable grip does not slip. 2. air release screw design: air release screw directly clockwise screw to the hand can not screw when you take a spanner to tighten on. 3. oil and water separator: after the oil and water separator, gas compression after the oil and water is removed more clean air.