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Title: "For gas ovens place liner on lower rack" -- FAIL!
Review: First off, the product dimensions are not "18 x 4.5 x 4.2 inches," as stated in the item description. The sheet is 23 x 16.25 inches and the thickness of maybe two sheets of copier paper. Pretty flimsy. The instructions on the box say that for gas ovens, you shouldn't put the liner on the bottom of the oven. Instead it should go on the lower rack. Which seems pretty ridiculous, especially in a convection oven. (The instructions also misspell "visible" as "visable.") Rather than take a chance on this thing melting, it's going in the trash.
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