SLIK Pro 400DX Tripod Legs - with 3-Way Pan/Tilt Quick Release Head, Black (615-400) SLIK A. M. T. alloy offers an exceptional strength-to-weight ratio more than 40% greater than similar tripods. The easiest to use leg lock Lift lever to unlock, push lever to lock Releasing the Center Column Locking Collar frees movement of the Center Column, in both vertical and horizontal directions, which means you can work faster Choice of three different leg angles for quick set up on inclined or uneven ground Top section leg diameter 26.8mm