The item is a car mount holder, which is made of durable hard plastic material, and can be used to clamp GPS firmly with the help of an adjustable back clip. Besides, the back clip can be rotated by 360-degree for comfortable viewing. With durable structure and easy to use, it is really a wonderful car holder for choice. Features - Color: Black. - Material: Plastic. - Base Diameter: Approx. 2.2 inch / 5.6cm. - Ball-head Diameter: Approx. 0.67 inch / 1.7 cm. - Suction cup car mount for 40 40LM 40LMT. - Strong suction car mount. - Easy to install on windshield or dashboard. - Ball-and- style for and GPS angle adjustment. - Allow you to rotate your GPS 360°, turn left, right, and tilt up / down. How to Use Insert ball-head to the back of the holder Remove protection film from the bottom of cupule Mount cupule of foot-rest direct towards windshield or dashboard Press then lock it Package list: 1 * Adjustable 360-degree Rotating Suction Cup Car Mount Stand Holder for GPS (Black)