Yes, by replacing the CO2 cartridge, Restube is immediately ready for use again, up to 200 times, depending on the model. The sales package contains a Restube incl. a matching CO2 cartridge. After use, Restube is very easy to get ready to go again: Deflate, insert a new gas cartridge, fold the buoyancy chamber according to the printed instructions, and stow the whole thing in the bag! ATTENTION: Only the original RESTUBE CO2 cartridges are 1.) 100% quality tested, 2.) seawater resistant, 3.) level tested and 4.) the necessary release force is matched to the release. The cartridges comply with the standard for life jackets DIN EN ISO 12402-7. If other cartridges are used, it cannot be guaranteed that Restube will fill without problems in an emergency and the trigger may be damaged.