Featuresr periscope lens for taking pictures from multi angle easilyr high class glass lens high clarityr mini size lightweight portable to use you can take photos with it at any time and any placer compatible with most mobile phones that the outer diameter of their camera should be within 13mmr magnetic o rings with adhesive tape for easy installationr r note the flashlight should be turned off when the lens is in user r how to user if your phone is magnetic you can use the lens d