Black TwinStar 4.5" Reflector Telescope Fast f/4.4 EQ Mount 114mm (4.5 inches) objective mirror, 500mm focal length Fast f/4.4 F-ratio for outstanding brightness 25mm & 10mm Plossl 1.25" Diameter Eyepieces Included EQ Mount and Tripod w/Accessory Tray are Included (RA motor drive is available) Step-by-step Color Photo Online Assembly Guide