Colorful fun for the tub! Give the knob on the Crayola Fizz "n Swim Fizzie Dispensing Duck a few twists and watch it spring into action! For more colorful fun, insert a color dropz tablet onto the slot on the duck"s back. Wind up using the side knob. Place the duck into the bath water. Watch it color the water as it swims! * The Crayola Fizz "n Swim Fizzie Dispensing Duck features: * Wind up and go! * Kid powered--no batteries needed * Contains wind-up bath toy, 8 water coloring tablets