Buy from Amazon.com : http://fave.co/1HcZlT2
Gitzo GT2531EX Series 2 Carbon 6x 3 Section G-Lock Explorer Tripod - Replaces Gitzo GT2530EX
Product Description :
New Anti Leg Rotation system
Locking system completely redesigned to achieve a 20 increase in rigidity
Built-in accessory hook
Rapid shift center column
Removable rubber feet allows you to easily change to fit other accessories such as spiked feet
