MEGA Hot Wheels Monster Trucks Mega Wrex Bone Crash Stunt Track Kids will love the smash and crash action. This buildable Hot Wheels toy features Mega Wrex and Wrexplorer Monster Trucks. There are 3 different ways to build the ramps and obstacle. Speed, crash and smash: Kids simply pull the vehicle back and then let go, and the pieces will fly through the air as they land after the jump. The included buildable micro action figures fit in the driver's seat. Ages 5 and up. Warning: WARNING: Not suitable for children under 36 months. Warning: Attention! Not suitable for children under 36 months. Danger! Contains small parts that can be swallowed. Choking hazard.