This set of three boxes is totally my expectations. The boxes are very practical, partly because they fit together and do not take up storage level, they have an ideal format, tolerate low temperatures (I have not yet tried the microwave) and secondly because they are sealed tight can be clipped well on all four sides.
Washing and rinsing are easy. A little tip before soaping them, if you put fatty food inside, you can rinse with cold water, this will allow you to rid faster fat. The dimensions given in the description does not match the real, I measured 6 cm deep, 10.5 / 11 cm wide and 16-17 cm long.