Perfect size: Waliki's 18"/45CM Hopper Ball is the right size to make exercise fun for kids ages 3-6 Burn out kid's extra energy: Allowing mom to relax. Inflates quickly Manufacturered by WALIKI. Safe & durable: The Jumping Ball is safety tested to US safety & phthalates standards We read your mind: Parents deserve fun too! Get an adult size Hippity Hop Ball for yourself! Easy to inflate: Double-action hand pump included to inflate your Hopping Ball in under 5 minutes