Normally 2 parcels will be sent to buyer if buyer choose ‘vest plus cylinder’ option.
One package include the vest, send by UPS/DHL/FedEx/SPSR/ePacket, it is fast shipping, while the other package include a 45 grams CO2 high pressure gas cylinder, which is not accepted by most of express companies, will be shipping by other shipping methods, it is slow shipping. Plus it is difficult to pass through airport security check. Please wait patiently.
The CO2 gas cylinder is sealed, disposable, one-time use and can be replaced for another one.