Powerful 100mW Green Laser Pointer. How far can it reach?

http://www.ankaka.com/high-power-100mw-green-laser-pointer-all-metal-combat-edition-allweather-cast-metal-design_p237.html Highlights... 100mW green laser All-weather cast metal design Adjustable beam diameter up to 30x Built in lock and keys for child safety Laser is strong enough to burn matches and pop balloons! Notes from Manufac