Jual Carbon Fiber Extension Tray Arm Float Buoyancy Aquatic Arm Dual Ball - Jakarta Barat Ideal for shooting water-activities photos, or diving under water. The dual ball head design is genius because it gives you complete flexibility in positioning your camera or lights exactly where you want them. The arm is 1 inch in diameter with a D20mm ball size, and they offer different lengths - this 8-inch version is a great versatile size that works for most setups Carbon Fiber Float Buoyancy Aquatic Arm Dual Ball Floating Arm Diving... Buoyancy will be different due to many reasons, please notice it. The color of the aluminum alloy parts will be changed by factory, but the quality is same, please take it into account before ordering, thanks for understanding. This float arm is both for macro and wide-angle photography. Lightweight, highly durable double ball design. Camera Underwater Float Arm BGNing Diving Carbon Fiber 1inch Dual Ball Head Float Carbon Fiber Float Arm Specifications: Made of high quality carbon fiber and aluminum material, durable to use.