Optical Glass, 500mm focal length. Aluminum Tube/Tripod, Plossl 26mm and 12.5 Huygens (1.25") eyepieces, Red Dot finder scope. Pre-assembled tripod. Toys"R"Us Canada Exclusive - Edu Science - Astro Nova HD 1000 Young Astronomer's Refractor Telescope Newtonian Astronomical Telescope is a perfect portal into the realm of deep sky observation. Offering a 114mm aperture and a 500mm focal length, the telescope comes with two eyepieces that produce images with excellent definition and contrast. The set also includes an adjustable tripod, a red dot viewfinder, Downloadable computer software and a star map. Just add clear, dark skies on a moonless night and a red flashlight to protect your night vision and you are set to explore the universe.