Gskyer EQ 80900 Telescope, German Technology Telescope,Starwatcher Refractors Compact monocular with 10x magnification and 25mm objective lens BaK-4 fully multicoated optics for superior brightness, resolution, and edge clarity Rubber coating and ergonomic grip; waterproof, fogproof housing Long eye relief; includes wrist strap and nylon carrying case Measures 4.75 inches long and weighs 5 ounces; lifetime manufacturer's warranty