Introducing the Mounting Bar for Boulder Camera Cart This Bar mounts to two support posts on the top of the Boulder Camera Cart. This allows users to mount external monitors via quick release mounts which are not included. The Bar also features many 1/4″-20 and 3/8″-16 threads which allows users to mount other smaller accessories via articulating arms and other similar mounts. This Bar mounts via two toggle screw based clamps allowing it to quickly be mounted or removed and can also be adjusted in height.