Suggestions on usage When using this product with heavy device, use the air vent mount instead of the sticker Remove the device from the holder when you park your car outdoor on a sunny day There's no need to fumble for your phone if it's securely at hand in this versatile cell phone holder/cradle, which can be wall-mounted or clipped to your car vent. Comes with easy-to-assemble parts that require simple installation with a normal screwdriver. You can clip the holder onto your car's vent or switch the back part to mount it on a wall or flat surface with screws or the 3M tape included. A must-have accessory. Width: 1.4 to 2.2 inches (fully extended arms) / 35 to 56 mm (fully extended arms) Size: Adjustable to fit all sizes Suggested Applications: Please measure the dimensions of your device for best fitting.