This device is a very nice and exceptionally well-crafted beginner telescope. The high quality of the optical elements used provides an unusually sharp and high-contrast image for this class of telescope. The fixed-mounted red dot finder allows for quick and easy locating of desired targets. You can easily adjust the focus using the 1.25" rack and pinion focuser. The telescope is suitable for both nature and terrestrial observation as well as for astronomical applications such as moon and planet observation. The tube is attached to the mount via a standard dovetail rail. The device can be fully assembled in just a few minutes without any special knowledge or tools.