Celestron C6-a 6" Schmidt-Cassegrain Optical Tube Assembly - Starbright XLT Coatings. Includes Diagonal, Visual Back, Celestron 25mm Multicoated Plossl eyepiece and Dovetail. Please note: Tripod not included. Used only to display telescope.  Focusing is smooth as butter.  No fungi or scratches present on objective lens.