AMAZE YOUR STUDENTS: Amaze your students with Steve Spangler's WINDBAGS by blowing up a WINDBAG in just 1 breath!
INFLATE WITH ONE BREATH: Steve Spangler's WINDBAGS are 2 meters (8ft) long and can be inflated in jut one or two breaths! Perfect for scientists ages 4 and up!
LEARN ABOUT AIR PRESSURE: Learn about Bernoulli’s principle and the properties of air pressure with Steve Spangler's WINDBAGS!
ACTIVITY GUIDE INCLUDED: Steve Spangler's WINDBAGS come with an activity guide filled with fun science experiments to try with your WINDBAGS!
DURABLE SCIENCE TOY FOR KIDS: Steve Spangler's WINDBAGS are so light and strong that even the smallest scientist can demonstrate the amazing properties of air with this science experiment kit!

 
 Amaze everyone by blowing up your Windbag in just 1 breath! A Steve Spangler Science Classic! How many breaths does it take to inflate an 2 meter (8 ft) Windbag? 70 breaths, maybe? Why even try? With a simple science secret you can amaze your students and friends by blowing up your Windbag in one breath! If you don't believe it, try this amazing science activity! Windbags are so light and strong that even the smallest scientist can demonstrate the amazing properties of air! Recommended for children ages 4 and up.