This is the Light and Motion Sola 4000 Camera Photo Mount Kit – 1 Ball

Features:

• This allows you to mount your dive light on your SLR rig and use with Ultralight arms
• *Ships with appropriate screw and allen wrench
• Sola light head and compact camera housing sold separately
• FOR SOLA 4000 ONLY

Great for customizing your Sola Light set up.