Features: High Definition Prism: BAK4 high-definition prism with a wide field of view transparent and bright and no dark edges is an excellent telescope. Wide Field of View: This high-power telescope has a wide field of view allowing for a wide viewing range while ensuring clarity and stability. FMC Coating: The telescope adopts a FMC full optical coating which makes the lens clear and transparent with small color difference transparency and increased environmental brightness. Adjusting Knob: The diopter adjustment knob will make it easier for users with different left and right vision to use it until the eyes adapt. After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Material: ABS Field of View: 200x25 Color: Black Notes: Please note that due to the influence of light and screen slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. includes: 1 *Binocular