Now kids can collect and add to their repertoire of skill-based creative play with a 5-Pack of awesome Hot Wheels Color Shifters vehicles! Five different models of 1:64 scale vehicles that change colors when kids dip them in warm water. By dipping them in cold water they change back it's almost like getting 2 cars in 1 or rather 10 cars in 5! These fan-favorites are compatible with Color Shifters play sets like HW City Robo Shark Frenzy and the Ultimate Gator Car Wash. Fantastic gift for kids 3 years and older or party favors for birthday celebrations.