Feature: 1. 1/4 Inch Screw and Stretchable Pin Design: Universal 1/4 inch screw and stretchable pin at both ends to prevent twisting. It can be installed on tripods and other devices with equivalent interfaces at will, with strong compatibility. It can be used with products such as fill lights, microphones, monitors, phone clips, and sports cameras for expansion. 2. Random Adjustment of Multiple Degrees: The adjustable thumb bar helps to fix the ball head at an appropriate angle, and two spherical heads adjust the different positions and angles of the equipment on the magic arm. The ball rotates 180 degree and is adjusted from multiple angles. 3. Silicone Damping: The double ball head has a damping ring, which increases friction and is not easy to loosen or slip. The diameter of the stainless steel ball head is 20mm, and the maximum bearing capacity is 5kg. Anti slip push teeth, more stable during use, safe and reassuring! 4. Durable And Sturdy Material: The magic arm with dual ball heads is made of aluminum alloy material, anodized, with a good feel and long service life. 5. Compact and Portable: The lightweight and small size allow you to put the magic arm in your carrying bag, easy to carry, will not increase your burden. Specification: Item Type: Magic Arm Material: Aluminum Alloy Weight: Approx. 122g / 4.3oz Screw Interface: 1/4 Inch Maximum Bearing Capacity: Approx. 5kg / 11.0lb. Package List: 1 x Magic Arm