Easy to Install. No tools necessary for this installation! Simply peel back the adhesive and stick the Mount to any surface. It is compatible with most smart phones from 4 to 6.5 inches, including but not limited to compatible with iPhone 11 Pro/11/XR/XS Max/XS/X/8/8 Plus/7/7 Plus, Samsung Galaxy S10/S10 Plus/S9/S8 Edge/Note 9, Huawei and More. It won't block your view in the windshield and won't block your air vent. The 3M adhesive won't leave any trace or residue when removed. 360° Rotatable ball joint allows you swivel your phone to vertical or horizontal mode or any other better viewing angle.