JMALL Green Multipurpose Laser Light Disco Pointer Pen Lazer Beam with Adjustable Antena Cap to Change Project Design for Presentation  (320 nm, Green)

High-quality laser pointer incorporates the latest technology in green laser optics and microelectronics. Use your laser pointer to point at any desired targets,projection screens, or video monitors.Useful for presentations, museum and tour guides, pointing the stars, and construction inspection. Different types of laser pointer can show different colors of light, and the apparent brightness of a spot from a laser beam depends not only on the optical power of the laser and the reflectivity of the surface,