The heart is the hardest working organ and now it will work hard in your store. Customers will fall for the great packaging and details. This science kit starts out as a great looking detailed small heart anatomy model. When placed in water over the course of days it demonstrates the super water absorbing properties of polymers as it becomes a big heart. Just place the heart in water and it will grow many times larger.

All in a heart stopping 5.25x2.5x2.5" box 

For ages 8 and up