With Gitzo Mountaineer Series 3 4-Section Long Carbon Fiber Tripods "Long" refers to longer section tubes that let these tripods reach eye level when fully extended. Larger diameter lower leg sections improve vibration dampening. The top spider has been redesigned to add rigidity. The GT3532 has a center column on the tripod can be removed for Ground Level Set, which enables the tripod to reach its lowest height of 6.3". Its four-section legs are secured with twist locks that incorporate G-lock Ultra, which has an internal O-ring to prevent dust and particles from entering the leg system. Large leg angle selectors give you more area to grip when readjusting leg angles. A ballast hook on the center column allows you to add weight to increase the tripod's stability.