The support and arms form a most stable triangle structure that securely holds your phone even during quick turns and speed bumps. Unique linkage design enabled you simply lock your phone in place, ease of use. Simply press to mount it in the air vent. Simply pop your phone in and out of the mount by one hand. A ball joint allows you freely adjust to get he most comfortable viewing angle. A reserved port enables you recharge your phone when the cat mount installed. Easily fix it on air vent that does not block sight to ensure safe driving.