SANQIAHOME 4 Tier Stackable Stainless Steel Lunch Box Sealed(green, 4 layers) with spoon and fork

Amazing

These are pretty solid items. I did a controlled test in which I boiled water and poured it in one of the containers and times how long it would stay warm for and did the same for cold water. I also tested whether they were leak proof. The results: they are leakproof; in terms of temperature, it's not bad. If you wanting something that will keep your food warm for the whole day, then this isn't it. But let's say you cooked something in the morning and what it to still be warm by lunch time, I would say this is probably going to do most of the job. For colder food, it does the job. Again, this isn't an item I would count on keep anything warm or cold for most of the day, but enough until lunch at the latest. I do love the stacking feature (though it doesn't fit in my lunch box) but I think it's a pretty neat feature because you can meal prep and have them ready to go in the morning and jus grab your stack out the door. I also appreciate the different depths variations in this design making it perfect for packing soups and other types of food options (i.e. fruits). My favorite feature though is the fork and spook in the little case. I use these more than use the actual containers! Overall I think this is a good purchase.

The plastic clips to close it broke right after I opened it and washed before ever using once.

On the Amazon, state it's can be microwave... But after getting the product, I'm not sure and not going to try.. So, it's just ok..