These Monster Truck minis may be small, but the crashing and smashing is epic! Each key launcher that comes with each Monster Truck activates speed for monster crashing action. The adventure to search and find them all is on! The Hot Wheels Mystery Monster Trucks assortment features some of the coolest, fastest mini scale trucks all kept under wraps. Each one comes in a blind box to keep Hot Wheels Monster Truck fans in suspense. And each box comes with 1 mini Hot Wheels Monster Truck, a launcher and a sticker. Great gift for kids 3 to 6.