A great way for kids to expend some energy, get exercise and have tons of fun! Helps build coordination. Constructed of heavy gauge vinyl and boasts a durable grab and grip handle that will last for a very long time. Excellent for indoor and outdoor use. Deflates for easy storage with a safe, recessed valve. Product dimensions: 15" diameter. Age - 4 and up. Maximum weight is 100 pounds. WARNING: CHOKING HAZARD -- Small parts. Not for children under 3 yrs.