Features: 01.Laser Wavelength: 650nm 02.Output Power: less than 5mw 03.Laser Class: II 04.Laser Range: 50-100 meters 05.Metal Housing 06.Tube Size: 54mm*16mm 07.Tube Diameter: 16mm 08.Mount Size: 26mm*25mm*30mm 09.Packing: Blister Card 10.Wrench Diameter: Approx 2.4mm 11.Application Area: Laser Alignment, Aiming and Positioning, Hunting and Spotting, Search and Rescue, Outdoors and Hiking 12.Package weight: 88g Package included: 1 x Laser sight scope with Mount 3 x LR44 (357A) Botton Cell (1.5V, 160mAh) 2 x Allen Wrench