Pro Astronomical Telescope 114mm Aperture 875X Zoom HD High Resolution Rewrite Type: Battery Operated Train Set

Type: Battery Operated Train Set Power Source: Requires 2 AA batteries (not included) Includes: Locomotive engine

360° swivel head

Other Compatible models:

Slats: Plywood

This 80x180cm modern mat features a luxurious soft velvet pile that is skin-friendly and water-repellent

Pro Astronomical Telescope 114mm Aperture 875X Zoom HD High Resolution Rewrite Type: Battery Operated Train SetThe universe is beautiful and mysterious. Every star light comes from countless years ago. Let's explore the past and future together with children. A little knowledge about astronomical telescopes: 1. Magnification=objective lens focal length eyepiece focal length * multiplier. Although the multiple can be increased by replacing the magnification mirror, the larger the multiple is, the better the image is. 2. The larger the objective aperture of the