Very suitable for observation of the moon, planets and a large number of deep sky celestial bodies. The goggles effectively protect the eyes when in use, and provide better protection and comfort to the eyes. The eyepiece is multi‑layer coated, and can provide a 50 degree field of view. 1.25‑inch eyepieces provide the widest field of view as well as extra clarity and long eye distance. This product is made of high quality metal and optic glass, very durable and provide good use experience.