Perfect for use in various setting such as outdoor skywatching, professional astronomical research at observatories, educational activity, and even family backyard astronomy night Ideal for amateur astronomers, students, educators, photographers, and astronomy enthusiasts who seek to enhances their observations and captures detailed astrophotography Its Small and lightweight design makes it easy to transport, allowing you to enjoy the wonders of universe from virtually any where with your compatible 2 inch designs with a 90 degree viewing Angles, this Top Reflect ensures comfortable long terms observation by reducing neck strain, while its optical Reflect minimizes light loss for bright, clear picture unparalleled and Precisions with this 2 Inch Top Reflect, featuring a robusts all metal construction and 99% reflectivity for best astronomical observations