This Green Laser Pointer Pen with battery is small and exquisite, portable and with richer applications. Widely be used to point at the faraway target or stars and sending out the SOS signal anywhere anytime. What’s more, black body makes the laser light in the night vivid and unique. This green laser pointer is also the best gift for friends and families. Use it also in construction jobs to point at an area of interest in daylight! Or use to intimidate intruders as if it were a laser sight.