I am very enthusiastic about the click boxes, as they have always held and do not let liquids ausdringen. Also, I like the transparent design, so you always see what is in it. The boxes also prevent escape of odors, but also really need to be cleaned well with SpĆ¼li if you had onions or lettuce in it. A box I had to wash 3x with washing up liquid, so the smell was gone and I could reintun my cake. The heading shows the capacity on the ground often easier for me to choose which box should I take. My husband is quite succeeded cancel clicking heels. I also have a feeling that this is done after a certain Abnutzdauer because the connections are not just the strongest. Judging but with care, you can certainly go out of 2 years shelf life. The rubber ring which is the cause for the protection against ausdringender liquid can rausholen and wash. This is also important, because otherwise can form residues including starting to get moldy. You have to ring again bring very accurate and push in the right, so that the full protection arises again. But this is all very simple. 100% -Kaufempfehlung!