Details Features 1.Astronomical telescopes can help your kids get rid of computer games2.Can watch the nebula; moon and Mars; very suitable for amateurs and students3.You can also watch the scenery and bird watching Specifications - MODEL1 - F30070 Optical Design - Refractor Aperture - 70mm Focal Length - 300mm Mirrors - 90°Erecting BAK4 prism Focal Ratio - F5.7 Optical Coatings - FCM Multi-coated Finder Scope - 5x24 Optical Barlow lens - 1.5X /3X Tripod - Aluminum Alloy Tripod - 45-138cm(17.71"-54.33") Eyepiece - 20/12/6mm Zenith Mirrors - 48° zenith mirror (the object seen is erect) MODEL2 - 30070 Optical Design - Refractor Aperture - 70mm Focal Length - 300mm Mirrors - 90°Erecting BAK4 prism Focal Ratio - F5.7 Optical Coatings - FCM Multi-coated Finder Scope - 5x24 Optical Barlow lens - 1.5X /3X Tripod - Aluminum Alloy Tripod 40cm(15.74") Eyepiece - 20/6mm Zenith Mirrors - 90° zenith mirror (reverse image of objects seen)