Disney/Pixar Cars Mack Truck Hauler Carrying Case + 15 Die Cast Character Cars (2012 Edition) * Disney Theme Parks Exclusive & Limited Availability Item * Mack truck hauler carying case that holds up to 30 cars Press the silver button for horn sounds and working head lights! Size of die cast cars may vary and are not standardized (contact seller for additional details) Requires 2 "AA" batteries (included)