What is the Physical Principle underlying the toy?
Air Pressure distribute uniformly in a fixed volume.
What age grou pis the tou designed for?
Age 2 and above
How does the toy work/ how does the child play with the toy?
It is really simple! Whenever you are bored, do bad on the exams, break up with your girlfriends/ boyfriends, angry about your mom...etc, jJUST SQUEEZE IT! You will experience a extraordinary sensation that you never have before! You feel GOOD~~~