Bushnell's 18-1560 150x50mm refractor is the value-priced ticket to the stars for beginner and intermediate astronomers. Fully featured for night after night of fun and excitement exploring deep into space. Features aluminum optical tube assembly, High quality glass optic objectives. 600mm focal length. Includes: 4 & 20mm .96" eyepieces, Pan Head Mount, Adjustable Aluminum Tripod & Diagonal Mirror.