A CNC machined aluminum ball with a 1/4in-20 screw allows it to be compatible with other super knuckle accessories. Can be easily mounted on a camera cage via the 1/4in threaded holes and features a thumb screw for quick locking and for convenient and firm installation. The anti-slip rubber pad at the bottom prevents any scratches. It also comes with a hole for using a #3 Allen key to re-tighten if necessary.

• Compatible with other super knuckle ball accessories
• Can be easily mounted on a cage via the 1/4in-20 threaded holes
• Features a thumb screw for quick locking for convenience and firm installation
• Rubber pad protection on the base prevents accidental scratches
• The ball is made by CNC aluminum