The phone holder is made of beautiful anodized aluminum. The Peak Design Car Vent Mount attaches to the vent with 2 connection points for a stronger fit and stability. The 360-degree rotatable stem allows you to place the phone away from the vent for better airflow and makes it easy to adjust the screen position for proper readability/visibility. The phone holder is compatible with Peak Design Mobile smartphone cases or a universal adapter (sold separately). In addition, the holder is also compatible with phones and protective cases that support MagSafe.