Kids often tend to act out as they go through a transitional phase, and the acting out is often seen as a form of aggression and punished. The better way is to get them a Intex 3-D Bop Bags that is made of rubber. This Bop Bag can take all your kids aggression in and give off nothing but calmness in return. It's perfect for children between 2-6 years of age. Now give your child's aggression a positive outlet and bring peace to your life!