Securely mount your smartphone with the Mobile Phone L-Clamp with Dovetail Jaw from Really Right Stuff. This mount fits devices 2.3 to 3.4" wide and has two 1/4"-20 standard threaded holes for mounting on tripods, monopods, and more. A custom hex key, which is secured within the clamp with a pair of rare earth magnets, adjusts the coarse sliding jaw, while a knob locks the phone in place. The L-Clamp ensures that your device can be mounted in either landscape or portrait orientation, and angled jaws hold your device in place and are lined with firm rubber. The 1.5 quick-release dovetail jaw lets you directly mount your device to compatible ball heads and other devices.