Quasar Science Ossium Baby Pin

Every RR and R2 ships with one of these, which tells you how central it is to the way Quasar tubes rig. The Ossium Baby Pin is the adapter between the Ossium Mounting System and the rest of the grip world: it presents a standard baby pin to a C-stand, a gobo head or any traditional hardware already on the truck, so a Rainbow does not need its own dedicated mount.

It screws either directly to the Ossium Rail machined into the fixture body, or to the Ossium Slider when you want the rigging point to move along the tube instead of sitting fixed. The dual screw design is the part that matters in use, giving two points of purchase so a long tube does not creep under its own weight. Buy spares when a kit is being split across multiple setups.