1. The motorcycle helmet chin clamp mount can be reused and supports multiple angle adjustments to help you capture wonderful moments. 2. Clip-on bracket makes installation more convenient, does not damage the helmet paint, and does not affect the closing of the helmet lens. 3. Quick disassembly/assembly design, easy to use 4. Anti-slip mat + anti-slip particles + safety rope, stable and secure and not easy to fall 5. Safe and stable, the maximum carrying capacity is greater than or equal to 5kg 6. Helmet thickness range: 18-35mm 7. Set 2 comes with a mobile phone clip, which can hold mobile phones with a width of 55-105mm.