Designed for use with the Benro Combination 2 and 3 series tripods, the Benro AGC3N Geared Column gives you the freedom to mount a wide range of cameras and other equipment. It features a versatile 3/8"-16 threaded stud on both ends, which allow you to either mount two tripod heads simultaneously or to change your camera's location instantly without removing the arm. The column’s geared movement can be controlled by a primary handle that moves the column vertically down or up in small increments. The basic twist lock prevents the column from unnecessarily moving out of place. Furthermore, this column is made from aluminum, which makes it durable.