Vevor Inflatable Ball Pit 15 ft with Electric Air Pump NewThis inflatable ball pit features professional heavy duty PVC construction which is waterproof and flame retardant. The 15 ft. diameter space allows adults and kids to play together, and the 3. 4 ft. height walls keeps balls inside for fun games. The powerful air pump inflates the ball pit in under 3 minutes. Heavy duty D rings are designed for ground anchoring, keeping the ball pit secure during strong winds.