High-Power Green Laser Pointer 520nm 150mW with Pattern Caps

It is quite a useful laser pen for presentations or pinpointing something from a long distance. It also has a cap that disperses the light into an intersecting green kaleidoscope, which is fun to do in a field or on trees. But remember that this is not a toy, so don't go shining it at airplanes or any vehicle, for that matter.