Universal Speedball Only is a 1 inch (25mm) ball with combination 1/4-20 and 3/8-16 mounting screws. Push the 3/8-16 outer screw down to reveal the hidden 1/4-20.
Install the ball with the cam-lever in the down position to finger-tight, then lift the lever to add extra locking force to the assembly. The extra force of the cam-lever design allows the arm to lock in place without the use of messy rubber pads.
Universal Speedball components are compatible with any other brand of 1 inch (25mm) ball attachment like Ultralight Control Systems, Wooden Camera, etc.
Product Weight: 2.30oz (65g)
Product Dimensions (WxLxH): 1.00 x 1.00 x 2.75in (25 x 25 x 69mm)