NF.Holder is the most versatile Phone and Tablet Magnetic holder that attaches to any screen with a thickness of 1/4″ to 1/2″. The holder comes with a  one metal ring that attaches to your device. See video below. Simply attach the holder to your screen, attach the ring to your device ,and attach device to the holder.. The magnetic connection firmly grabs  on to the device and make a very strong bond that can hold anything from phones to heavy devices such as an iPad 12.9″ tablet as  demonstrated in the video.