Very difficult to open and close! I must be missing something as I have struggled mightily to remove the piece that opens the bag and seals the bag closed. I cannot imagine trying to close this with a filled bag of food and have no intention of trying. I would never have purchased these bags had I known. Ridiculous. This was a complete waste of money, in my opinion.

durable. works for sous vide.

Have had these for about a month and they are working well so far! The reason i didn't give 5 stars is because they come in individually wrapped plastic! This drives me crazy because the point of this product is to reduce plastic. Very wasteful.