Sturdy stainless steel food jar with stainless steel lids. Except liquid, you can use it for dry food, yogurt, pudding and etc. I will mainly use it at home to keep cooked food or left overs. I may also use it as lunch box. If the size are fine for you i would recommend.
These are really nice, and they nest inside each other, saving space in the drawer. One tiny hitch is that the silicon ring in the lid isn't really mounted, it just fits into a groove, so it comes out easily. As long as you keep track of it, it's easy just to pop it back in.
I've looked a long time for a stainless container the size of the 24 oz and was so happy to find it. I actually keep my saved bacon grease in it and it works great (and makes delish green beans etc)!
These are heavier than expected. The threads on the lids don't engage very well. One of the jars arrived with a stain on the inside of the lid and a damaged washer.