The Nucleus provides full control of focus, iris, and zoom. Each motor has its own built-in drive that communicates directly with the hand units and hand grips.  The motors can also be attached and detached easily to accessories using 19mm or 15mm rods.
 
What's Included:
3 motors 
Hand Unit 
Spider Grips
2 Hand Griips with Thumbscrew Controls
Batteries
Charger