Motorcycle Magic Arm. Fully adjustable motorcycle camera mount with 360-degree rotation for stable, versatile Insta360 shooting. Tech Specs: In the box: mounting base, extension rod, expansion inserts, screw adapters, 1/4-inch to 3-prong adapter, hardware, and installation tools. Fully adjustable Magic Arm provides 360-degree rotation for capturing multiple riding perspectives. Fits hollow handlebars with 13 – 19 mm inner diameters using interchangeable expansion inserts. Supports threaded handlebars with 8 mm, 10 mm, or 12 mm mounting holes using included adapters. Removable arm allows the mounting base to remain installed as a convenient handlebar end plug. Aluminum alloy, stainless steel, and reinforced plastic construction for a strong and reliable mounting system. Fitment: Ace Pro 2. Go 3S. X4 Air.