Green Laser, 532nm laser.mp4

http://www.buylaserpointer.com/green-laser/p-6.htmlide ranges of applications:Portable and with richer applications.This 100mw laser pointer pen-shaped is perfect for slide presentations, microscope projections, field studies,wall charts,lectures,astronomy stargazing and celestial objects observation etc.

http://www.nicovideo.jp/watch/sm27629892