To use the Barbie Pop Reveal Shakes Series doll, first, unscrew the animal ear lid with the shimmery Slime. Then, use the straw to poke through the film and enjoy the squishy feeling. Next, peel the film on the cup to reveal the shake - scented Barbie doll and other surprises. Open the two ice cubes to find more accessories. The mystery bags also hold fun items. For the colour - change feature, use icy cold water to transform the doll's face and warm water to change it back. Remember, this product is not suitable for children under 36 months because of the small parts. Keep the small pieces away from little ones to avoid choking hazards. When not in use, store the doll and its accessories in a safe place to prevent loss.