The Crab-Shaped Super Clamp with Ball Head Magic Arm, Action Mount & Phone Holder Kit from SmallRig enables you to mount a smartphone, action camera, small light, or other component onto a tripod, rod, pole, or surface measuring up to 2.1" in width. The kit includes a crab-shaped clamp, a ball head magic arm with 1/4"-20 screws on either end, a 3-prong action mount, and a smartphone holder with a 2-prong action mount. The assembly supports a load weighing up to 3.3 lb.
The magic arm features a mini ball head at each end, enabling you to position your accessory at almost any angle. One end mounts onto the crab-style clamp, and on the other end, the action camera mount provides a 3-prong mount for the smartphone holder. The smartphone holder can hold a phone from 2.2 to 3.4" wide and up to 0.4" thick. The clamp tightens easily using its large wingnut, and the magic arm is fastened via a thumb-lever.