Product Specification: Laser class: IIIa Output power: <5mW Laser range:50-100m Wavelength: 520nm Laser working time:~60Min approx Size: L1.73\'\' x W1.24\'\' x H0.94\'\' Features: Metal Material, small and lightweight. Ambidextrous On/Off Switch on both sides. Windage and elevation can be adjusted easily. Fast,safe,adjustable and secure mounting to picatinny rail or weaver accessory rail.(Doesn\'t Fit TAURUS G2C). Package: 1 x green laser sight 1 x usb charging cable 1 x allen wrench Note: if the product has any problems, just return it for a full refund or replacement.