The Jmary BH-01 is a 360-degree phone holder with a mini ball head. It is made of aluminum alloy and ABS plastic, and has a weight of 90g. The holder has a clamping range of 55-90mm, which can accommodate most smartphones. It also has a 1/4 UNC screw for mounting on a tripod or other accessories. The Jmary BH-01 is a versatile phone holder that can be used for a variety of purposes. It can be used to mount your phone on a camera, tripod, or other device. It can also be used to prop up your phone for hands-free viewing or recording.