Meade Green Laser Pointer- a great item for star parties and backyard astronomy. Trace the constellations or point out a target or location to a single friend or 100 of them with ease. A great teaching tool for astronomy outreach and education. Talk about the sky with confidence that everyone sees the correct stars and constellations. Soft rubber grip fits comfortably in your hand. This high quality pointer includes an elegant metal carrying case, two AAA batteries, and instructions for use. This generates a visible beam and green laser dot up to 25,000 feet away. Wavelength of 532nm.