● SW-1800 Sea Wolf Inflatable Life Jacket and Belt Cylinder Kit How to replace the carbon dioxide gas cylinder is on the back of the package. Compatible Models: Sea Wolf SW-J-F03, SW-J-F06, Daiwa DF-2608; Contents: Carbon dioxide gas cylinder, 0.6 oz (18 g), cartridge x 1, safety lock pin x 1; Since it cannot be used once by UML, you will need to replace it with a new cylinder. There is an estimation for the replacement time on the side of the cartridge. ※This product will be shipped by Nekopos. Since it is delivered to the post, you cannot specify the delivery date or time of delivery. Please acknowledge