360° Rotation: The magic arm has a 360° rotating sleeve that can be adjusted to any angle to meet your needs. There is a tightening knob in the middle to make the device more stable. RUBBER DESIGN: The Magic Arm and Super Clamp have rubber pads that increase friction and protect the contact surfaces of the connected devices, helping to lock your accessories more securely. Durable and lightweight: Aluminum alloy material, anodized surface treatment, strong and durable. The magic arm has a storage length of 13.2 cm and a weight of only 0.2 kg, and the super clamp weighs only 0.1 kg. Their small size makes them easy to carry in your pocket or bag. WIDE COMPATIBILITY: This kit includes magic arms with 1/4 inch expansion holes on each end for attaching cell phones (cell phone holder required), small monitors, fill lights, microphones and other devices. Note: The data are all measured manually, please allow 1-3cm error due to the difference in light and display, there may be some color difference, please refer to the actual item received.