E00203-20mW 650nm Mid-open Red Laser Pointer Pen with 2 AAA

http://www.gadgettown.com/20Mw-Mid-Open-Red-Laser-Pointer-Pen-Aaa-Batteries.html
This 20mW 650nm Mid-open Red Laser Pointer Pen with 2 AAA Batteries is very small and easy to carry, no setup needed, you can put it anywhere anytime you want. Light weight and durable material.