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Title: worked until a little heat warps the product and is ruined
Review: I have 3 ALVIN mats and these are expensive. They were subjected to a little heat. Not a lot of heat and they warped and are now useless for what they are used for. The image at the right showing the green on one side and the black on the other is now what this thing looks like. I would avoid this product considering the investment. I called ALVIN customer service and they do not stand by this product except to say it was a limited 90 day warranty. WHo knows what kind of heat will ruin this mat. What if you spill hot coffee on it. BAD PRODUCT.
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