Material: magnetic2. Multiple styles for you to choose1. Magnetic design, it can be used as a car holder without magnetic stickers5. Ultra-thin design, thickness is about 4mm2. Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the color tone of the website's photo and the actual item.3. Multi-angle rotation, suitable for different scenesSize: φ4cm/1.57in4. Lightweight and compact, it will not become a burden1. 1cm=0.39inch1PC Phone Ring Buckle3. Please allow 1-2cm error due to manual measurement. Thanks for your understand!