The Walters 10X Hand-Held Monocular Telescope features crisp optics in a sturdy housing case. The hand-held monocular cannot be spectacle mounted. The telescope monocular features dual purpose optics that work well for both distance and near viewing capabilities. The optical quality lenses provide clear images with minimal distortion and crisp optics to see images in great detail. The housing is sturdy and durable, great for use outdoors.;Walters Monocular Telescopes include a detachable neck strap and protective case and include a Limited Lifetime Warranty. These monoculars have a protective Rubber Casing.