1. From drivers closer, hands-free super-convenient answer the phone, navigation sight 2. The telescopic scope is 55mm to 85mm, fully supports the current popular smartphone, iPhone Samsung navigator etc. 3. Elastic fixed design: the use of an elastic rubber band fixed, the steering wheel does not affect the size of the installation. 4. Easy installation: no extra tools, just a few seconds to complete it. 5. Security: The device is highly compact steering wheel can be moved, there is no safety risk 6. Protection: The device is embedded soft silicone pad to protect your phone from scratches or scratched and so on. 7. Wear resistance, high toughness made of environmentally friendly materials, can be used for along time. 8. The device does not affect the steering wheel cover is installed.