Small experiments, BIG ideas! Assemble the motor and the fan and watch the ball levitate on an invisible stream of air. Supplies included: 6 pcs punch out board, wooden base board, plastic tube, styrofoam ball, motor, fan blade, battery box, red positive wire, black negative wire, double-sided foam tape and easy instructions Requires 2 AA batteries, not included. Recommended for children 8 years of age and older with adult supervision. Through simple electrical circuit science, you can learn first-hand about Bernoulli's principle!