Hard to open and close, and that's good!

Haven't used them much yet, but so far I like them. As others have noted, the closer is difficult to manipulate, but to me that's a good thing. It means they are more likely to be watertight. I'm sure they will ease up slightly as I use them more. One thing I like about them is, b/c they are silicone, I can use them like a "boil-in-bag" for camping meals, or even to use the same way at my office for lunch. Good purchase!

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