Features:LED (Light Emitting Diode) 100% Safe for the EyesUnlimited Eye Relief for flexible mountingRheostat Knob with Three Brightness Levels for each of the Red, Green, and Blue Dot reticlesIncludes 30mm Cantilever weaver/ Picatinny type MountOcular and Objective Flip-Up Lens CoversPowered by 3 Volt Lithium Batteries (CR2032) includedIncludes Extra Battery and Mounting ToolsBlack Anodized Aluminum BodyInternational orders will not include batteries.Specifications:MAGNIFICATION: 1XRETICLEDOT: (RED, GREEN, and BLUE)DOT SIZE:3 MOAOBJECTIVE LENS SIZE:35mmLENS COATING:PLATINUMMOUNT TYPE:CANTILEVRED 30mm MOUNT AT 1 1/2" CENTERLINE HEIGHT. RAIL CLAMP ON WITH THUMB NUT. COMPATIBLE WITH WEAVER/ PICATINNY/ MIL-STD 1913 TYPE RAILSBATTERY TYPE:CR2032 (included)BODY COLOR:BLACK ANODIZED COATED FINISHLENGTH:5.0?WEIGHT:8.9 oz