This is an excellent phone holder; jaws open to hold the phone lengthwise or sideways; jaws are rubberized inside for a secure grip. Two adjustment knobs provide complete adjustability. Excellent suction cup: you don't just push it onto your windshield, there's a lever to provide maximum suction, and to release when done. One drawback: it vibrates a bit while driving, making the phone hard to see. Not a problem if you're using voice directions, or when you're stopped.