Features: LED (Light Emitting Diode) 100% Safe for the Eyes Unlimited Eye Relief for flexible mounting Rheostat Knob with Three Brightness Levels for each of the Red, Green, and Blue Dot reticles Includes 30mm Cantilever weaver/ Picatinny type Mount Ocular and Objective Flip-Up Lens Covers Powered by 3 Volt Lithium Batteries (CR2032) included Includes Extra Battery and Mounting Tools Black Anodized Aluminum Body International orders will not include batteries. Specifications: MAGNIFICATION: 1X RETICLE DOT: (RED, GREEN, and BLUE) DOT SIZE: 3 MOA OBJECTIVE LENS SIZE: 35mm LENS COATING: PLATINUM MOUNT TYPE: CANTILEVRED 30mm MOUNT AT 1 1/2" CENTERLINE HEIGHT. RAIL CLAMP ON WITH THUMB NUT. COMPATIBLE WITH WEAVER/ PICATINNY/ MIL-STD 1913 TYPE RAILS BATTERY TYPE: CR2032 (included) BODY COLOR: BLACK ANODIZED COATED FINISH LENGTH: 5.0? WEIGHT: 8.9 oz