Chromed metal 'lever' used to operate the CO2 cartridge within the bladder (stole). The inflation lever consists of a 'J' shaped handle that pivots between lugs on the lever body. The CO2 cylinder is screwed directly into this assembly and secured within the bladder using a hose clip around the base of the lever assembly (available separately). The end of the Co2 cylinder copper thread remain in the lever. I can easily remove this if required. Slight distortion/curve on the lever handle (see photo) otherwise in excellent used condition. This is the earlier style of lever assembly. Later versions have a locknut, and an adaptor, or sleeve, with a cutaway skirt. Also suitable for Harnessuits. Stock code MW18227.