Very convenient... We drink kefir with blended various fruits. This results in thickening, yet.... It sucks easily, the liquids only come out from the straw in special cases where the child has sucked and the liquid remains in the middle of the straw.

I bought one at the beginning of the school year and I was so satisfied that I bought a second one around Christmas. The little one finds it very convenient. It opens easily compared to others that cannot be screwed and does not need to touch it with "dirty" hands to lift the straw, as it automatically lifts whenever we are not concerned about hygiene. It is easy to clean, except for the straw, for which we have bought a very thin brush and it cleans perfectly. There are also replacement straws from what I have seen. Anyone who has seen it at the playground has ordered it. I highly recommend it!