This phone holder measures 1.7 inches or 43mm across the artwork. The portion that sticks on the phone also measures the same. Between these two disks are two small jointed arms that fold out to position the phone on an angle to be able to watch videos on your phone hands-free conveniently. They are capable of being set into several positions. They fold flat into the disk when not being used. These joints also allow for gripping the phone better, as you can insert a finger in between the open joints to hold it securely.