Features:It is the perfect accessory for home defense or sport shooting to give you pinpoint accuracy with your shot， and the confidence to perform your best in any situation Avoid direct eye exposureHorizontal sliding ON/ OFF switchMount on any 20mm weaver & picatinny standard railColor: Black Matte FinishWindage & Elevation: Adjustable From OutsideReticle Color: RedMax Output Power: <5mwWavelength:635-655nmPower Supply: 2 x LR44 Battery (Not included)Size: Approx. 58mm x 27mm x 23mm/ 2.28" x 1.06" x 0.91"Package Included:1 x Red Dot Sight Picatinny Weaver Rail Mount2 x Wrench