I purchased this item. This is the best mobile phone holder I have ever purchased. Other than the convenience of surface charging and the ease of placing the mobile into the locking action. The one thing that always cheesed me off with Mobile Phone chargers was the arm sliding into the car vent. Previous purchased holders, hit a bump in the road and the phone would move into a position requiring adjustment. This does not, its rock steady. I was so happy I purchase another 2 for my wife and daughter and sent the Amazon link to friends and family. They have all commented on it in my car and are all buying one.