This gently used Kase Smartphone Master Telephoto Lens contains high quality optical glass that effectively blurs the background and highlights your subject. The anti-reflective coating ensures maximum sharpness and high-contrast in all of your images while also protecting against distortions. This lens is ideal for shooting portraits, pets, and short film projects. With about 2.5x magnification effect, shooting mid-to-far scenes, is equally clear. Due to the optical structure, the center of the lens is clear and the edges are blurred. This lens features a 17mm mount and can be installed on a phone case or phone cage which has a 17mm screw thread. It comes with the original front lens cap and has no dents or scratches on the body or glass. It has barely been used and is in excellent, fully operational condition.