Very good, the child opens it by himself (3.5 years old), the container does not open by itself in the bag, it is easily washed and does not stick to oils, sauces, etc. Whenever it went in the microwave or dishwasher (4-5 times) it didn't suffer anything, it helped us because it has a spacious food compartment, but with the first fall (empty) the container broke. I replaced it with the same one in a different color and again, with the first fall of the child, the container broke. At this price, I would expect the plastic to withstand more falls, the product is aimed at children!