The 12g manual Re-arm Kit contains everything necessary to re-arm your Mustang Survival Khimera PFD after deployment. Use only Mustang Survival re-arm kits. Use of other re-arm kits may result in improper operation or failure to operate and will void the product's warranty. For the Khimera dual flotation PFD (model number MD7183). Re-arm kit contains: One 12 gram CO2 cylinder One green indicator pin Re-arming instruction manual Features One 12 gram CO2 cylinder One green indicator pin Re-arming instruction manual For the Khimera dual flotation PFD (model number MD7183)