Perfectly Safe Design: The inflatable bumper balls are made with non-toxic 0.3 mm PVC material for the entire body. They feature a reinforced connecting piece, a safe air valve, and secure handles to help ensure children's safety during play. Portable and Lightweight: Using the air valve, this human hamster ball can be inflated or deflated in minutes and is easy to carry. Outdoor Activity Essential: A fun toy for kids or families to enjoy at barbecues, parties, or picnics. Provides an engaging way to get outdoor exercise while having fun. Dimensions and Recommendations: The external diameter is 36 inches (90 cm). Recommended for users with a height of 48 to 75 inches and weight between 110 and 330 lbs, suitable for children aged 3 to 15. Do not over-inflate. Recommended for children 6 years and older. Adult supervision is required. Helmets and appropriate safety gear are recommended.