This Carbon Express Reflex Multi-Reticle Red Dot Crossbow Sight features an open "reflex" design that allows for a wide, sharp field of view. Includes 4 different reticle designs and 6 brightness settings. Tubeless design with 1x magnification and 24x34mm objective. Multi-coated lens is shock proof, fogproof and water-resistant. Windage and elevation adjustments. Lightweight 4.2 oz. high quality aircraft grade aluminum construction. Thermoplastic lens cover and lithium battery included.