Extra Large Swell Polymer Brain

Our scientists have crafted an incredibly detailed brain model that expands when placed in water. It will grow to the size of an actual human brain, which is truly astonishingly large. We developed this growing brain model so others can experience its awesomeness. Recommended for ages 8 and up.

Using this swell polymer brain is easy. Just place it in water and watch it grow. Keep an eye on it to see how it reaches the size of a real brain. It's great for showing others and learning about the brain. Remember, this is for ages 8 and up. After using it, dry it carefully and store it in a cool, dry place to keep it in good condition. Don't expose it to extreme temperatures or sharp objects as they could damage the brain model.