Features: Experience unparalleled and Precisions with this 2 Inch Summit Mirror, featuring a robusts all metal construction and 99% reflectivity for best astronomical observations. designs with a 90 degree viewing angle, this Summit mirror ensures comfortable long terms observation by reducing neck strain, while its high quality optical glass minimizes light loss for bright, clear picture . Ideal for amateur astronomers, students, educators, photographers, and astronomy enthusiasts who seek to enhances their observations and capture detailed astrophotography. Perfect for use in various setting such as outdoor skywatching , professional astronomical research at observatories, educational activity , and even family backyard astronomy night . Its Small and lightweight design makes it easy to transport, allowing you to enjoy the wonders of universe from virtually anywhere with your compatible 2 inch telescope. Specifications: Material: metal Calibers: about 50.8cm Package Includes: 1xZenith Mirror note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.