Easily mount your mobile phone to your microscope's eyepiece for capturing large field of view images of what you're seeing in your microscope or telescope! Compatible with a wide range of mobile devices (Apple, Samsung, LG, etc), the padded bracket can expand or contract to fit any size, allowing a wide variety of mobile devices to be used. Attaches to any microscope eyepiece with an outer diameter 23.2mm or larger, creating a mount that is compatible with almost any standard microscope or telescope on the market.