Hot Wheels Monster Trucks 1:64 Color Shifters, 1 Toy Truck that Changes Its Deco in Ice Cold Water & Changes Back in Warm Water, Toy for Kids. The Hot Wheels Monster Trucks 1:64 Color Shifters Trucks deliver smashing and crashing with the bonus of two decos on one truck! Simply dunk the Color Shifters truck in ice cold water to magically change its initial appearance, then change it back by dunking it in warm water. Repeat the process over and over again to alternate between the designs. With so many awesome Color Shifters Monster Trucks available, kids will want to collect them all. Colors and decorations may vary. The information provided here is as complete and accurate as possible; however, product names, colours and/or materials are subject to change without notice.