To show your color, fill the drum with water and soak the vehicles until the water changes color.
Then, take out the car and you will see the beautiful decor hidden in each! Do you want to change your appearance again? Fill the drum with cold water and again submerge the cars to surprise you with your new transformation! And if you want even more changes, put them in hot water! Change whenever you want to alternate between cold and hot water.
It's like having two cars in one! The drum serves as a HOT Wheels immersion tank, and is ideal to store everything perfectly.