Four Reticle set: Dot, Bullseye, Cross, Bullseye. LED (Light Emitting Diode) 100% Safe for the Eyes. Unlimited Eye Relief for flexible mounting. 7 Brightness Settings for reticle. Black Anodized Aluminum Construction. Uses 1 each CR2032 Battery + a spare battery (included). Tools for adjust Reflex Optics Zero and Rubber Lens cap are included.