1. Material: stainless steel + aluminum alloy + ABS 2. Applicable models: electrical car, motorcycle, bicycle, etc 3. Applicable cell phone size: 4-6.5 inch 4. Simple and concise structure, small volume, does not occupy space 5. Easy to take and put the phone, and equipped with a key safety lock, no longer worry about dropping the phone during the ride 6. Aluminum alloy base, durable, not easy to corrode 7. Two claws and the phone contact surface with soft rubber pads, to protect the phone from wear and tear 8. Reserved button hole, charging, receiving calls and other operations do not affect the use, convenient and quick 9. Universal shaft design, adjust the angle at will, to meet the needs of placement