D203 F1600mm reflective telescope mirror set, featuring a spherical primary mirror and a 40mm elliptic secondary mirror for enhanced viewing. Caliber of 203mm and focal length of 1600mm, perfect for both adult and children's astronomy enthusiasts, ensuring a clear and detailed observation experience. Ideal for beginners in astronomy, this telescope mirror set is compatible with various telescope models, making it a versatile addition to your astronomy gear. Includes protective film on the aluminized mirrors to ensure durability and longevity, providing excellent optical performance for stargazing. Easy maintenance instructions provided for mirror cleaning, ensuring your telescope remains in optimal condition for the best astronomical observations.