Description: 60mm Underwater Buoyancy Light Ball Arm Joint . Dual 1inch ball head, connect diving flash, video lighting kit to action camera underwater housing, part of the light arm system. The ball is pressed and bonded in the air to keep the arms floating. Practical accessory for wide-angle and macro photography. Made of high quality carbon fiber aluminum, light weight and durable. Specification: Material: Carbon Fiber & Aluminum Diameter: 60mm/2.4inch Size: 27.5x6x6 cm/10.8x2.4x2.4 inch Package Includes: 1x Floating Light Arm