Create fun colors in the tub with Sesame Street Fizzy Tub Colors! Color an entire bath with just one fizzing tablet or learn to mix colors by adding additional tablets. The tablets now features letters A, B & C* to encourage letter recognition and discussions about letters and sounds while playing in the tub. The mild formula contains Bitterguard to discourage consumption. *Only includes letters A, B & C in varying colors. *The red fizzy tablet appears darker in color and can often look purple when dry. Red coloring appears as the tablet dissolves in water. This color tablet mixes well with the blue and yellow to create new colors.