Reinforced ski carrier, daisy chain gear carrier, detachable rope-fixing strap and 2 removable ice axe attachment points let you lash tools and gear to the outside of the pack.

A data carrier mounted and demounted as a unit, for example, a reel of magnetic tape, a disk pack.

The clutch pack is used, in this instance, to lock the planet carrier with the sun gear forcing both to turn at the same speed.