The Hot Wheels Colour Blaster play set allows you to instantly change your car's paint job with just a squirt of water. Designed for children ages four and older, the play set comes with a special "Colour Shifter" car that changes colour when washed with hot or cold water. Drench it with the spray gun or dip it in one of the playset's dunk tanks, and watch it change colours before your eyes. Aim, Fire, Transform! Colour Change Action Includes 7 Colour Change Cars!