Those who expect little ...

... Will not be disappointed. Ultimately, it is plastic container with a metal hook. So far so good, and they serve their purpose. However, one should be sure that you do not need something better:
* The lid keeps very poor, falls off very easily and you will probably dispose of it quickly angered.
* The containers are very small - in order to achieve a good air humidification is one does not get along in small rooms with.
* They are cheap (advantage!) But just look exactly like this.
Can and will you come to terms with it, you'll be fine.