Features: Strong compatibilities, can be connection to 17MM round head, convenient installation. Crafted of high-strength materials, not vulnerable; 360 degree rotation design, adjust the viewing angle at will. Suitable for mobile phone and tablet users, especially office workers and students who need to use the equipment for long time. It can be used in many occasions such as home, office, car, to frees hands and improve efficiency. Ideal for content creators, remote workers, and students requiring handfree operations during video recording, live streaming, or extended video conferencing. Perfectly adapts to home studios, office workstations, car interiors, or outdoor shoot, transforming standard tripods into multiple device support systems for photography and productivity tasks. Specifications: Component:Plastic Stretch by 15 to 25cm/5.91-9.84inch Color:Black Package Includes: 1pcs Plastic Phone Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.