Perfect for what I needed, Locking tops are greatAfter a few washes, the clips become difficult to impossible to close. If used in the microwave, the lid warpsI love these containers! Work great for any size needed!I like these lock style containers, and my husband has actually requested this style for his lunch containers, since they don’t spill and he doesn’t have to find the lid that fits the best. They pop right in the dishwasher, and come out clean without warping (which did happen with some other containers). I like this set since there’s a range of sizes, I’ve put up sauces in the smaller ones, put a couple of 1 serving containers up with freezer meals, and used the big one for 3 cups of rice to use through the week. When they’re all in the cabinet, they will nest inside each other *with the lids on!*. That’s right! You don’t have to stick the lids in that random big container you keep just for lids, you can store them with the lids on and it doesn’t take up any more space. I can’t comment on staining, as I haven’t made chili or anything since I’ve gotten these, but I put a shrimp and black bean salad up that has onions and peppers in it, and I didn’t smell anything from that in the fridge like you do sometimes. The price is comparable to other name brand sets of similar types of containers, and I think these are good quality. I expect to be able to use them for quite a while yet.The containers have Airtight Lock Seal Lids for Lunch and Salad or Snack Meals. They are Reusable BPA-Free Canisters for Pantry, 8 Pack – Blue. With various sizes and shapes (4 Rectangular, 2 Square and 2 Rounds Containers in different sizes), These air tight containers come in a wide variety of shapes and sizes for all your exact storage needs.Webos Food Storage Containers are made of high-quality BPA-Free, Food grade materials. Can be closed easily, Hard to break, Microwave-safe, Food contact, Freezer-safe, Waterproof, Dishwasher-safe, Airtight, No smell, Stackable. They have a space saving design. This is a very nice product and I give it a 4-stars rating.A while back, my wife asked me to look for some food containers, and I guess we didn't communicate real well.I had thought she was wanting dry storage containers for things like cookies, chips, cereals etc. So after ordering around five different sets of storage containers, and completely reorganizing the kitchen pantry, I finally realized she had wanted the kind of containers that store wet foods like dinner leftovers.These containers work great for keeping things sealed up in the refrigerator.My older food containers seem to be thicker and stronger than these, but these have been working perfectly fine.These also store nicely and they take very little room in my cupboard.This is a review for the Airtight Food Storage Container Set.I absolutely love these plastic food storage containers and I have lots of things to say in their favor.I am always losing or misplacing the lids to food containers plus my plastic and glass containers looks messy and take up too much room in my cupboards.The advantage to these containers is that they nest perfectly - the square fits inside the square ones and likewise with the round shaped ones.The containers are so lightweight yet sturdy, and I like the way they lock up on all four sides to close. They are very easy to open, even if you have issues with your hands, like I do.Recommended. These are not the biggest containers but they look good, work well and take up little room in your cupboard.