FEATURES: Re-arm kit is appropriate for use with Bluestorm Atmos 40 and Bluestorm Arcus 40 automatic life jackets/personal flotation devices (PFDs) 38 gram CO2 cylinder with 1/2" thread Halkey-Roberts V80040 Yellow Bobbin, Leland re-arming kit part number: V95000-86202Z Easy-to-follow re-arming instructions included in this kit n>