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Title: VERY POOR PRODUCT
Review: I've tried several of these Foodsaver canisters, and most have cracked quite soon after being put into use. One crack, and they are no longer air-tight. The round ccanisters crack on the bottom. Rectangular canisters crack along all four corners. Don't waste your money. Also, they're real space-eaters in the cabinets. the lids don't nest at all, and neither do the canisters of the same size.
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