It's surface is flat. When you put your mobile phone on the table, your phone will be safer. This phone ring stand is compatible with all smart phones and tablets that have a flat and non-textured back surface. Expand the one-handed touch screen range and effectively avoid damage to mobile phone slip. Ring stand for cell phone rotation 360/180 degrees, it is easy to find the position of the phone ring holder for watching movies and videos This phone holder for hand also can be used as a phone stand, car mount, cable winder and work on magnetic car holder.