A great way for kids to expend some energy, get exercise and have tons of fun! Helps build coordination. Constructed of a heavy gauge vinyl and boasts a durable grip handle that will last! Excellent for indoor or outdoor use. Deflates for easy storage with a safe, recessed valve. Approximately 18" in diameter. Recommended for ages 4 and up, up to 100 pounds. WARNING: CHOKING HAZARD -- Small parts. Not for children under 3 yrs.