The Crab-Shaped Clamp with Magic Arm and MagSafe Mount from SmallRig lets you mount a 1/4"-20 threaded camera accessory or MagSafe-compatible phone or accessory on a rod, pipe, tripod leg, or surface measuring 1.5 to 4 cm deep. The kit is made up of a durable crab-style clamp, an adjustable 29 cm magic arm, and a detachable MagSafe mount.
The magic arm features an adjustable mini ball head with a 1/4"-20 screw at each end and a joint in the middle, enabling you to position your accessory at almost any angle.