Product Features:1. Broad Compatibility: Works with most smartphones and cases. The arms present a firm grip to hold the latest iPhone series, Galaxy series, phones from Motorola, Sony, and any other mobile phone brands with width in a range of 1.8in/4.5cm and 3.7in/9.3cm. 2. Sticky Suction Cup: The suction cup has a coating of sticky gel that prevents air gaps and ensures a secure hold on the dashboard, windshield, or desktop. Note: Works on smooth and flat surfaces. 3. Rinse and Reuse: If the sticky suction cup gets dirty or loses its stickiness, simply rinse it with water and let it air dry, it will stick like new. You can easily remove the car phone mount holder from vehicle to vehicle and re-attach it as you want. 4. Anti-fall Adjusting Knob: You can easily adjust the length of the arm by turning the knob, and customize the distance between your phone and you as needed. The knob has been upgraded and uses an anti-fall design, it will not fall off during the adjustment process. 5. Anti-skid and Anti-scratch There are sponge pads on the arms, bottom feet and surface, which can protect your device from being scratched. Also. The cushioned car mount absorbs the vibration during bumps, and holds the phone securely in place. 6. 360 ° Rotation View Angles: Extremely flexible 360 ° ball joint and 210 ° adjustable arm provide infinite viewing angles, secure your phone to the perfect angle. Installation: 1. Clean the dashboard or other smooth surface. 2. Stick the mount onto the surface and press down the locking lever. 3. Adjust support arm’s length and cradle’s angle. 4. Press the release button to open the clamp and set the phone. CompatibleModels: iPhone Xs Max//Xr/X/8/7/6s Plus ;Galaxy S10 S9 S8 S7; HUAWEI P40 lite/ P40/ P30 ect.