The key ball holds a compression spring and an interlocking needle in the key box.
When the system is activated, the key ball comes out of the key box and a needle in the key box is released and punctures the seal of the gas cartridge to inflate the Hit Air immediately.
Hit-air can be re-used repeatedly.
Unless it is damaged by the previous activation, it can be re-used byre placing the CO2 cartridge.
A simple changing system will have you ready to ride in minutes. After removing used Co2, reset your Hit Air vest or jacket with the hexagon wrench and setting bolt provided.