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Ultra Arm Clamp (Double Ball) is a component of our Ultra Arm lineup which clamps two 25mm (1 inch) ball attachments together.

Compatible attachements include:
Ultra Arm Ball (1/4-20)
Ultra Arm Ball (3/8-16)
Ultra Arm Ball (NATO Clamp)
Ultra Arm Ball (Hot Shoe)
Ultra Arm Ball (Super Clamp)
Ultra Arm Double Ball (3″)
Ultra Arm Double Ball (5″)
Ultra Arm Double Ball (8″)

This component is also compatible with existing 3rd party 25mm ball mounts.

Specifications:
Weight: 90.7 g (0.2 lbs)
Dimensions: 50.8 x 76.2 x 25.4 mm ( 2 x 3 x 1 in)