Wooden Camera Ultra Arm Ball with NATO Clamp. The Wooden Camera Ultra Arm Ball with NATO Clamp is compatible with the Ultra Ball system and can swap places with one of the original ends with a threaded stud, or you can combine it with other Ultra Arm accessories to create a custom rig.

This Ultra Arm Ball features a NATO clamp that enables mouting onto a NATO rail..

• Compatible with Ultra Arm System
• Features NATO Clamp