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Title: hidden costs
Review: When I received the product, operating instructions indicated that a cigar lighter was needed - "no blue flame" - because traditional lighters can burn out the heating element. after considerable searching, I found a lighter (expensive, too); however, the hand warmer is very difficult to light. And it tends to "flame" for no apparent reason, which leads me to conclude that the heating element has burned out. Both of my hand warmers have stopped working after only 3 - 4 uses.The manufacturers should market an appropriate lighter along with the hand warmer, and make it clear that a specialized lighter is needed.
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