Features: Stable support design ensures that the phone remain stable during movement. Suitable for outdoor sports enthusiasts, allowing you to focus on sports without worrying about equipment falling off. Anti slip enhances fixing effect and can firmly secure equipment even during intense exercise. Using quality PC that are both lightweight and durability, without causing any additional burden on the head. Designed for multiple camera models with wide compatibility. Quick installation without tools, simplified usage steps, and improved user experience. Specifications: Component: PC Type: Smooth, Frosted(optional) Design: refer pictures to selection please Quantity: 2Pcs/set Size: 22-28.5cm/8.66-11.22inch, 12-18cm/4.72-7.08inch, refer to pictures Package Includes: 2Pcs Head Strap Mount note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.