.Central Column has a diameter of 24mm, the central .column is mounted on to the tripod allowing the camera. to be positioned in the desired position you may require. .This central column is ideal for macro photography to allow you to take photos or shoot video closer to or at ground level..With a maximum loading capacity of 5kg and made from magnesium alloy the central column is light and easy to carry around, use as an extra part of your kit along with your compatible Tripod..The length of the central column is 32cm..The central column has a diameter of 24mm..Maximum load capacity of 5kg.