- How long can you make this ball floating? Challenge your family and friends!
- Classic game of science demonstrates Bernoulli’s Principle, the Law of Pressure Differential.
- Gently blow into the pipe and watch the ball floating.
- Includes: 1 x Wooden Pipe, 2 x Foam Balls
- Packaging dimensions: 15.5 x 4.2 x 5 (cm)