This version of a Halo assembly is held in place by a Rotary Fork which has mounting holes located on each side as indicated by the red arrows in the picture above.
The PATBB Trumpet Jaw has round locking pins that seat inside the Rotary Fork and this version of Halo Assembly is able to pivot on these pins and move up and down in a see-saw type of motion. The outer portion of the Trumpet is flared in order to allow the conduit to easily change it’s path or direction after it exits the assembly which is ideal for high mobility / fast motion applications.