First-class materials, testing and quality - Our windshield phone mount are made of top-quality materials. The Great quality of products makes it easy to pass the strict high and low temperature test, UV aging test and weight vibration test. Instructions for use and installation - For a better and safer experience, please follow the instructions inside the package for installation. If you have any questions, please contact our after-sales team and we will solve your queries within 24 hours. [Wide Adaptability] - Thanks to the huge clip arm and adjustable drop-down bottom bracket design, this suction cup phone holder can accept 4-6.5 inch devices. Compatible with iPhone 13 Pro/13 /12 Pro /12 / XR/ X, Samsung note 9/ 8/ 7, Samsung Galaxy S10/ S10e/ S9/ S8, Google Pixel 2XL, LG G6, etc. [Thick Case Friendly] - The thickness of the Clamp is 0.83 inch/21 mm. Compatible with popsocket, wallet case, otterbox case, thick case and more. [Never Break Hook Vent] - High-strength Stainless steel hook vent provide a durable use even bare a heavy duty phone on a shark turn or bumpy roads , ensure that a long time to use. [Never Shake Hook Vent] - With Triangle Support and giant support surface, the air vent phone holder will not shake even on bumpy roads. (Adapted to Horizontal air Vent Only). [Multiple Viewing Angle] - 360° Ball Head Adjustable, no viewing angle limited. Whether reply message on vertical screen or watch the navigation on horizontal screen, the conversion is just in a rotation. [Strong Suction Cup] - 2.6 inches/66mm diameter large suction cups, providing strong vacuum adsorption force, can easily bare 400g devices; With Glue on suction cups, phone mount for car windshield can be better attached to the surface (For dashboard use, please follow the instructions to install sticky pad; suction cups should avoid long-tome high temperature environment and direct sunlight). [Push and Pull Adjustment] - No screw tighten needed; Just Push and Pull, it's this easy to adjust the length. Simpler opration for safer driving. The Maxium length of the suction cup is 180mm suits for car/truck/van/suv and more. [1+1 Combination] - One Purchase, Freely Use; With stable hook air vent clip and strong suction cup base, it can be phone holder for car dashboard mount or car vent phone mount as your preference which allows you use in different cars.