Watch the foam ball float and glow in the dark as if it is defying gravity. Perform interesting experiments and learn about Bernoulli's airflow principle. Suitable for ages 8yrs & up. Contains 1 casing, 1 motor, 1 blister cup, wheels, ribbon, air rope extension, large and small ball, bubble solution, bubble gun wand, screws, and detailed instructions. Also required, but not included: a piece of paper. The casing is around 15cm in length.