SUNWAYFOTO HT4030CMI Inverted Leg Carbon Fiber without Center Column , 40mm, 3 Section,69'' Tall,Load 66lb.(30kg)Inverted leg tube design ensures quick deploy of the tripod. Leg tube stopper prevents the legs from crossing when folding. Counterweight hook at the base of the apex allows to hang your bag or backpack to further stabilize the tripod in windy conditions. Vent holes design effectively equalize pressure inside and outside the leg tubes ensuring smoother and quicker extension and retraction. Quick action twist locks, 1 4 turn to lock easily. Two in one