Laser Pointer

Brushed Metal Laser Pointer Pen, Sturdy construction and long battery life, which allows for heavy use as a teaching tool for science presentations,

Professional 15CM Jcksy Green Laser Pointer Pen With Stylus, 5mW High Power Laser In Green, Blue, Purple, And Red 532nm, 650nm 405nm From Sellerbest, $1.11

Incorporating safety, style, and function, the Crystal redlaser pointer with locking key is available from 5mW through 100mW in 650nm red. This one

Crystal Red Laser Pointer 5mw - 100mW

At 405 nm, a violet laser pointer emits a pale purple beam that is very close to the ultraviolet range. The beautiful purple beam is less visible than

Violet Laser Pointer

Jupiter - The Most Powerful Handheld Burning Laser Pointer

Standard Red Laser Pointer – Arbor Scientific

How Does a Laser Pointer Work? - GadgetMates

3-in-1 Laser Pointer / UV / LED Keychain

THOR H Series Laser Pointer - Laser Pointer Store

Laser pointer - Wikipedia