Celestron Has Joined Forces With Royal Observatory On This Addition To The Beloved Firstscope Family. This Quality Dobsonian-Style Telescope Features A Spherical Glass Mirror With A Generous 76 Mm Of Aperture. The Firstscope'S Wide Field-Of-View Provides Bright, Sharp Views Of The Moon'S Mountains & Craters In Crisp Detail. This Compact, Lightweight Telescope Is An Ideal Entry-Level Astronomical Telescope