PrepNaturals Reusable Plastic Containers with Lids, 10 Pack, Black, Meal Prep Bowls, Lunch Containers, BPA, PVC and Phthalate Free, Microwave and Freezer Safe

Easy to clean. Holds up in the microwave. Seals well.

I bought a set of these 17 ounce and also a set of the 25 ounce boxes. Bought another set of each later, after using them with great results for freezing quantities of applesauce, sauteed zucchini, buttercup squash, etc., from my garden and casserole/stew meals. They stack beautifully in the freezer. (I distribute the boxes around the freezer for faster freezing, then stack them up after they're frozen.) The rectangular shape makes for faster freezing and thawing than the cubical shape of my other boxes.For everyday use, I grab a box and lid and plop in leftovers, open packages of cheese, desserts, small quantities of veggies or fruit... you name it.The plastic is less porous and more rigid than the freezer boxes I've used in the past. When I first got them, I was afraid they would be too brittle, especially since the lids click so tight that you have to put some oomph into it to unsnap them. But they are tougher than they look, even opening a box right out of the freezer. Not a single one has broken or warped, after going through the freezer, then heating in the microwave, then going through the dishwasher.The nonporous surface is pretty impossible to stain. These don't seem to retain odors like Tupperware-type containers, either. I write the contents on the lid with a Sharpie, which stays put until I scrub it off.Having the two box sizes, which use identical lids, is super handy. They nest so well that they take up much less cupboard space than my old freezer boxes.I can't speak to how leakproof they are. Anything liquid I put in my boxes stays upright until frozen or used, so no real test of the seal.All these good qualities, and the price was right, besides.

These are good containers overall.They are lighter duty plastic than typical reusable containers, which surprised me, but they're still functional.The lids snap securely into place (in fact, they are maybe a little too difficult to completely remove), yet they do not seem to create an airtight water-tight leak-proof seal. I am using them for dry goods in the pantry, and I worry that things could be susceptible to oxidation and potentially pests. There is something of a seal, but if I press on the lid, it pushes some air out. On releasing, air died not immediately re-enter, so thus test gives mixed results. Heavier duty containers typically have a better seal.Also—no fault of these containers, but the very large surface area of the lid opening compared to the volume has pros and cons. On the plus side, the sides of the containers take up little space and many containers can be stacked and visible. This is great for my case of limited pantry space. On the downside, they are not great for pouring controlled amounts of their contents out, unless you usually want half a container or a container-ful at a time. For smaller quantities, the only practically solution for me is to use measuring spoons. I have never used measuring spoons for the contents of my pantry before, as with smaller lid openings it was simply possible to pour more controlled amounts.Still, these are good enough for my present needs, and I like being able to stack many containers per shelf. These also cost a fraction of the cost of containers especially designed for pantries.These are probably good for sending leftovers off with houseguests too, as they are likely good enough for the task and they are inexpensive.The size is perfect for my needs. 17 oz. is a hair more than a pint (2 cups; 1/2 a quart). I take them with me to the store and fill them in the bulk aisle (great at health food stores, but many grocery stores—at least around here—don't train their employees on entering tare weights properly at the register). The weight of each container with its lid is 0.80 oz. (to within 0.05 oz.), or 0.05 lbs.

Description says "Disposable Containers" and the cost is 40 cents each. I see them as permanent (for me), but wouldn't lose sleep if I left it at someone's house or disposed while on a trip. Worked very well in microwave and dishwasher, so I'll trust them on freezer too. Recycle triangle says PP = Polypropylene, one of the safer kinds of plastics.Lids ARE a good, snug fit. I left it loose for the microwave. Plus: each lid has a rectangular area to put on a 3.75" x 1.75" label (I love it) or write on with a permanent marker.Dimensions: With lid, each is 4 5/8" x 6 3/4" x 2 1/4". They looked a little small, but each holds 3 cups of water (gravy, soup, stew, jello, etc.) with a little extra room (1 more oz). So the description is accurate. A 6" sub or turkey wrap fits nicely. My wraps are 7+" in diameter and I just tuck the ends in and the container holds the sandwich in = no need to use a toothpick. For reference, a 12 oz soda can fits in with room to spare, but the diameter just fits. My point is the size is right for one or two servings of food. a sandwich, or a salad. For a ton of leftovers or party food, use multiple containers. They stack and fit in fridge better than the round containers. Empty containers stack together to minimize space.Lastly, I like the transparency for food and non-food items. I'm starting to use a few for pens and pencils, paper clips, etc. Will definitely reorder, after I work my way through 50!*** Follow-up 30 days later: still love them. Maybe not "permanent", one has a small crack on the lip (for sealing, not inside where the food is) AFTER (ab)using it for at least 10 times. I might have stepped on it. A little light weight in the dishwasher, so one flips over and comes out filled with water -- the other 4 or so stay face down. Lids dishwash easily and clean. They microwave really well, with cover on, but partly open or loose. FYI: Not just reheat. I cooked scrambled eggs in one and it worked really well. Spayed inside with no-stick spray, cooked 1 minute, stirred, until done. Serve and store. Maybe beyond what they were designed for, but worked for me. Less to wash.