【Transparent Design】 The mobile phone ring holder is made of transparent acrylic, perfect fit for any mobile phone with or without a case. Our transparent phone ring stand maintains the phone's original design without affecting its appearance. 【Free Rotation】 360° rotation and 180° flip make the phone ring grip more flexible and convenient to provide you with adjustable viewing angles, to meet your different viewing angles for reading and video watching. 【Strong Adhesive Ring for Phone Case】 The high-viscosity adhesive allows the ring phone holder to firmly attach to your phone/case for a secure grip, significantly reducing the risk of accidental drops. Any residue left after removal can be easily wiped away with alcohol. 【Installation and Compatibility】 Clean the surface of the mobile phone ring and remove the transparent paper before sticking it. Then attach the phone finger ring from left to right. Finally, press the stand for about ten seconds. Our phone stand is compatible with almost all mobile phones/tablets with or without a case.