LARGE APERTURE: Get a bright, bold viewing experience at a fraction of the cost of other optical designs. PROPRIETARY TENSION CONTROL HANDLES: These patented handles allow for accurate movement without the need for perfect balance. 94 percent REFLECTIVE MIRRORS: Fully multi-coated borosilicate primary and secondary mirrors deliver exceptional views. TEFLON BEARINGS: Proprietary Teflon bearings ensure smooth azimuth movement. COMES COMPLETE: All accessories such as, 2-inch Crayford-style focuser with 1 1/4-inch adapter, two super wide-angle eyepieces (25mm and 10mm), and 9x50 straight-through finder scope are included with purchase. STURDY AND LIGHTWEIGHT DESIGN: When fully assembled, the Dobsonian weighs only 53 pounds fully assembled (28 pound tube, 25 pound base)