Product Summary
These two black balls look and feel identical, but drop them side by side and students will notice a big difference in their elasticity. One bounces close to the original drop height, while the other doesn’t bounce at all. Includes three sets of the Bounce/No Bounce Balls. Each ball has a diameter of 2.5 cm.
WARNING: CHOKING HAZARD!
Contains small balls. Not for children under 3 years.