TRUGLO Tru-Brite 10X42 Binocular, Green Compact roof / BAK-4 prism design with phase coated prisms. Open-bridge design. Single, ergonomic adjustment wheel for both focus and diopter settings. Lockable diopter. Long eye relief for use with eyewear. Twist-up eyecups with click stops. Fully multi-coated. High transmission silver coating on prisms. Nitrogen gas filled. Waterproof / fog-proof. Shock resistant. Textured surface provides a non-slip grip in all-weather conditions. Matte finish. Detachable lens covers. Protective case. Neoprene shoulder strap.