SmallRig Magic Arm Support (11") 5309 is crafted from aerospace-grade aluminum alloy and stainless steel. It features dual 1/4"-20 screws and retractable pins on both ends, allowing for the attachment to crab-shaped clamps (ID 3755B) for mounting monitors, video lights, microphones, smartphones, and action cameras. This magic arm effectively prevents twisting of devices featuring anti-twist holes of the same specification, ensuring secure and stable shooting. The joint is designed with a knurled thumbscrew for easy tool-free fastening, complemented by a securing hole for additional tightening using the included Allen wrench. The ball head facilitates smooth 360° adjustments, while the arm supports a maximum payload of 1.5kg (3.3lb) To protect your equipment from scratches, the connection area features built-in protective pads. With precision CNC machining, this magic arm guarantees exceptional strength and durability.