This 70400AZ travel telescope is a user-friendly refractor telescope with 400 mm focal length and 70 mm aperture, fully coated optical glass lens with high transmission coatings creates crisp images helps increase the brightness of celestial objects, delivering 99% total light transmission and protect your eyes. No tools are required for travel telescope even for adults and kids. This telescope features a lightweight frame and a panning handle with Alt-Az control for smooth and accurate pointing. It's a great gift idea for kids, will encourage beginners to love learning about science and astronomy. This adults telescope is of adjustable height and direction tripod for many different viewing positions, the height of aluminum alloy tripod can be adjusted from about 21.6 to 48 inches, the telescope and tripod can fit inside the carry bag for easy traveling and storage.1 year warranty and lifetime maintenance were offered by our 70400 beginner Telescope.