Our portable 30mw Green Laser Pointer Pen provides endless fun for kids and adults alike!! The possabilities are endless with this true 30mw green laser diode. The superior quality allows up to 5,000 hours of use and it has an 8 mile range! It is a great tool for pointing to a faraway targets such as stars and constellations for the expert astrologer or the amature astrologer. You can also use this Laser Pointer for presentations to highlight key areas of a diagram or picture. In addition, this is the perfect guide for traveling and hiking. If you run into any trouble, this 30mw Green Laser Pointer can be used to send our an SOS signal. This is simpley good choice for you!