Leofoto's AM-6 166mm Heavy Duty Versa Magic Arm is a multi-purpose tripod accessory that allows a light, microphone, monitor, smartphone, tablet, or even an additional camera to be affixed to a camera rig without the added bulk of a clamp. It attaches to compatible Leofoto tripods and other tripod camera brackets with a 3/8th threaded hole. Each end of the magic arm features a ball-and-socket joint that rotates 360°, and the center elbow joint locks in any position. Additionally, the large, easy-to-grip center knob locks all three movements simultaneously for quick and easy setup and repositioning. Features of the AM-6 166mm Heavy Duty Versa Magic Arm: Folded length: 166mm / 6.53in Weight: 350g / 0.77lb Max. load: 5kg / 11lb Leofoto AM-6 166mm Heavy Duty Versa Magic Arm w/Anti-Twist Adapter, 1/4th & 3/8" Mounting Adapters AM-6-KIT