Wooden Camera Ultra Arm Double Ball (8"). The 8" Wooden Camera Ultra Arm Double Ball is a component of the Ultra Arm lineup. Each ball end features a 1" diameter with an encircling band to improve grip.

Nine 1/4"-20 and eight 3/8"-16 threaded mounting holes run along the main shaft between the ball ends, allowing you to mount additional accessories directly to the shaft..

• Ultra Arm Component
• 8" from Ball Center to Ball Center
• 9 x 1/4"-20 Accessory Mounting
• 8 x 3/8"-16 Accessory Mounting