The 38mm Double Convex Lens is no longer being carried. Please reference the below recommended products for the 38mm Double Convex Lens.
The Super Bottle Rocket Launcher propels ordinary 2-liter plastic soda bottles up to 100 feet in the air! Design to be portable and easy to use, the Super Bottle Rocket Launcher provides helps teach educational concepts of science, technology, engineering, math (STEM) and more while having fun!
Explore projectile motion with this 100% safe, chemical-free air-powered projectile. Flies straight and true with minimal wind effect and with a consistent, repeatable initial velocity - important for students testing predictions.