Features: This upgraded magic Arm Set is made of all aluminum alloy, comes with excellent portability, stability and product durability. The magic arm has standard 1/4" screw on its both sides, it can work with filed monitor, tripod, recorder, led fill light, flash light, cellphone clip holder and any devices with 1/4" hole. Super clamp is a very versatile and useful tool especially for holding your camera or fill light to a railing or other Cylindrical objects. This articulating magic arm simplifies the mounting, placement and adjusting any on-camera lightings and other accessories. Easy to install, each joint is adjustable, and all of them is locked with one knob. The whole arm can be adjusted at all angles. Specifications: Material:Aluminum Alloy Size: Approx.4cm/1.57inches Type:7 inch/11 inch/7 inch + round disc/11 inch + round disc Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1 Set Magic ArmProducts from GuanGuan's store