Description: 4" Diving Light Ball Arm Joint to Underwater Housing. Wide Application?mount flash light, on-camera field monitor to sliders, tripods more photography device with 1/4" hole. 25mm/1" diameter ball head , suitable for ball clamps and accessories. Part of the ball arm mounting system. High quality aluminum and pc material. Specification: Material: Metal Ball Head Diameter?25mm/1" Size?12.5*2.5*2.5 cm/4.92*1*1 inch Package Includes: 1x Ball Arm(4")
