I bought these as they looked good, looked up to the job and were good shapes and sizes for our thermos lunch bags. I also mistakenly thought that as they were a big name and priced over the average that they would be a good buy. I bought this set and a couple extra of the 1lt containers. They are useless for packed lunches. They leak like sieves , especially the smaller ones both my husband and I have had bags ruined by the escaping juices of pickled herrings and gherkins and oil from olives.
The blue rubber seal comes out when you open them and you have to work it back in each time you close the lid. We now have an area in the cupboard for the bases, an area for the lids and a tray for the blue rubber rings.
I will not be buying this brand again, the cheap sets I bought in my local cheap shop were better even if the odd clip broke and they discoloured a bit form repeated washing in the dishwasher.
I will be relegating mine to storing my mosaic supplies and will be looking for a better brand for lunch box use!