Red laser pointers
Buy red laser pointers. Red laser pointers have a clearly visible beam in the dark and a clear dot in daylight. Red laser pointers have a wavelength of 635nM which means that the human eye can see the laser clearly, also during the day. Red laser pointers are often used for presentations, astronomy, playing with your pet and to shine at the stars. All red laser pointers come with free batteries so you can start using the red laser pointer right away.