MILITARY GRADE STURDINESS TEST - STRONG SUCTION CUP: The enhanced dashboard cell phone holder car with 3 layers strong adhesive passed the military-grade sturdiness test, the maximum bearing up to weight of 55lb and withstand the temperature from -4F to 194F. NOTE: 1. Please clean dashboard first and wait 24 hours after installation and don't touch the adhesive pad with fingers. 2. Please note extra dashboard pad only ONE-TIME USEING.UNIVERSAL COMPATIBILITY: This universal car mount for phone will firmly hold all the smart phones (4-7in) even with thicker case (14mm) compatible with All PHONE. NOTE:WE RECOMMEND USING THE SMALLER PHONE(4.7inch) WITH PHONE CASEUPGRADED AIR VENT CLAMP: This car cell phone holder mount is designed as "hook shape" and form "Three grasp points" which can vise the outlet blades tightly. This car phone holder has Three Grasp Points with shockproof rubber, which could hold the phone steadier than others, it solving the market's common problem of being easy to fall off from the vent over time. NOTE: THE LENGTH OF CLAMP BETWEEN 0.41-0.98IN. THIS PHONE HOLDER ONLY COMPATIBLE WITH HORITABLE AIR VENT.8.0 INCH LONGER ARM DESIGN, MULTIPLE VIEWING ANGLE: The car mobile phone holder equipped with firmest & most flexible telescopic arm that extends from 5.90" - 8.00" (153MM - 203MM ) and can pivot up or down 270 for optimal viewing height. You can have a wider sight and adjust this gravity cell phone automobile cradles up/down or left/right. NOTE: THE HORIZONTAL MODE IS NOT SUPPORTED.THE EASIEST OPERATION & JUST SLIDE IN AND GO: Just slide in your phone, gravity phone car mount clamps the phone automatically by gravity and provide the easiest operation and a strong stable hold without close onto the side buttons. Easy to insert and remove your phone with one hand.3 in 1 CAR MOUNT: Are you not sure which installation method is better for your car? Aiming to resolve dashboard or air vent compatible issue, low temperatures in winter and heat in summer of environmental influences, this 3 in 1 phone holder for car vent dashboard windshield offer you the most ideal installation method for your car. Dashboard & Windshield & Air Vent & Desk, all places work perfectly. Perfectly suitable for sedan, pickup trucks, suv, taxis and more.