3 Extra Metal Plates for use with Phone Tagg Universal Magnetic Smartphone Holder - Black Includes 3 extra metal plates for use with the Phone Tagg Universal Magnetic Smartphone Holder Perfect for people or families with multiple devices that want to use the Phone Tagg Smartphone Holder Phone Tagg is the safest and strongest universal magnetic holder designed for keeping any smartphone or tablet device in place, including Apple, Android, and Windows Phone Tagg keeps you safe in your vehicle by providing distraction-free calls, GPS navigation, music control and notifications Our technology is safe to use, functional, and will not harm any smartphone