Medium length columns with ground level kits. These low level column kits are of intermediate length between the standard centre columns supplied with tripods and the very short columns previously supplied as separate accessories. Their lengths are defined to achieve the lowest shooting angle witrh legs not extended and opened to the middle angle. Column kits are in Carbon 6X tube and also incorporate the components for the Gitzo Ground Level Set: machined aluminium Safe Lock upper disc, new reversible 1/4'' 3/8'' bolts and a new retractable hook assembly. For series 2 and 3 the aluminium disc is the new Power Disc, that features an additional locking screw to securely lock the head ontyo the disc. These medium columns are the most convenient way to update previous carbon fibre and basalt Gitzo tripods to the Ground Level Set feature. These columns are not compatible with aluminium tripods.