Appearances can be deceiving. This rubber ball launcher and plastic rocket may look simple, but they're a sure-fire way to provoke a WOW reaction - and introduce students to Newton's Laws. Hold the top of the launcher and drop it straight down onto a hard surface. The rocket shoots up dramatically higher than its original drop height. Explaining energy conversion was never this easy...or this much fun! Comes with one launcher, two rockets. Class Kit includes 15 launchers and 30 rockets. Colors may vary.