Adjustable to fit cellphones up to 9cm wide. Attaches securely to car air vent. Extra durable design with rubber grip. Designed for extra reliability and durability. The Rubber Grip will prevent any scratches to your device. Adjusts to perfectly fit phones up to 9cm wide. Fits most vehicle air vent shapes. Perfect for using your phone as a driving aid with your favourite applications. Have your phone in one place to enable hands-free calling and conversations without needing to look down at a phone that might be on your lap, which may cause a loss of concentration.