For starters, the colors are bright and therefore they attract children.
Then there are all waking Accessories:
* Rattle
* Paper noise
* Squeaker
* Bell
* Vibrator
* Mirror
* The flower that is drawn to hear the "meuhhh"
* Etc ...
It can be used as a toy of awakening, and also helps the development of children's motor skills (my daughter climbing up and over the back of the cow)
I advise because it is pretty, attractive and fun;)
