This remarkable scope combines powerful 254mm-diameter reflector optics with point-and-view simplicity in one nicely portable package. And with included Computerized Object Locator, even the first-time stargazer can pinpoint the location of 14,000+ celestial wonders stored in the IntelliScope's databank. It's like having your own personal tour guide to the universe! The optical tube houses an 10" (254mm) parabolic mirror and rides on our state-of-the-art Dobsonian base, equipped with springless CorrecTension friction control for smooth movement and always-perfect tube balance.