Each Hot Wheels Monster Trucks 1:64 Colour Shifters Truck delivers smashing and crashing with the bonus of two decos on one toy truck Simply dunk the Colour Shifters vehicle in icy cold water to change its initial appearance, then change it back by dunking it in very warm water. Repeat the process endlessly to alternate between the designs. With so many awesome Monster Trucks Colour Shifters available, kids will want to collect them all. Each sold separately, subject to availability. Colours, styles and decorations may vary.