Not entirely sure about other reviewers for this product but we measured 4 packs of 2 packs and they were EXACTLY 3" x 4" under the seam . Keep in mind that the seal doesn't open the full width of the packaging, but it's still as close as I've seen it. For our purposes, putting product cards in it worked great. The only complaint (4 stars instead of 5) is that they were closed and it's a bit annoying to open them all even though they seem to close fine. The last set of bags I received (at the store) had unsealed bags that made stuffing things easier. However, they are easy to open.
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