Monster Jam, Official Reveal The Steel 4-Pack of Color-Changing Die-Cast Monster Trucks, 1:64 ScaleReveal the steel with the official Monster Jam 1: 64 scale color changing die cast monster trucks! This 4 Pack set features Grave Digger, Max D, Whiplash and Mohawk Warrior trucks to instantly add to your Reveal the Steel collection! With more graphics than ever before and a color changing feature, these 1: 64 scale Monster Jam trucks add a fun new element to your Monster Jam play! To change your trucks color, dunk it in warm water to watch the color