The Onyx A/M-24 Automatic/Manual Inflatable Life Vest Rearming Kit allows for you to refill the float bladder on your 1320 or 1321 model Onyx inflatable vests. This kit comes with everything you will need to rearm your jacket and even gives easy-to-follow instructions to ensure safe installation. The Rearming Kit includes a CO2 cylinder, indicator clip, and a bobbin for you to reset your vest. 24 gram CO2 cylinder with 1/2 in. threadGreen indicator clipYellow water soluble bobbinFits Onyx automatic/manual inflatable life jackets models 1320 and 1321Please note: Item contains a CO2 cylinder and may not be available to ship to Alaska or Hawaii. We DO NOT recommend wearing inflatable life jackets for ice fishing or on open water when the temperatures are below 40-degreesF (4-degreesC).