dealshigh power green laser pointer 5mw for $17.99

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5mW/532nm Green Laser for $4.87:
http://www.ebay.com/itm/Powerful-5mW-532nm-Astronomy-Green-Beam-Light-Laser-Pointer-Pen-Class-3A-Black-/190630157854

Didn't look at the details/differences, but at face value it looks like it's about $20 cheaper.