Smart Grip Officially Licensed Accessory by MARVEL 360 degree Rotation 3D Ring Universal Masstige Finger Ring Grip Stand Holder for any Smart Devices (Captain America Half) Smart Grip has a glossy surface like a mirror. And it has a sleek design and it is useful in many ways. We use real genuine SWAROBSKI Oktant Crystal to add to the classiness of the Smart Grip Smart Grip can be revolve in either 360 degree horizontally or 180 degree vertically. We use special Metal, RHODIUM which is perfectly safe for people. We always have used the best materials to get the high quality product. Smart Grip is an officially licensed accessory by MARVEL. (Genuine MARVEL accessory)