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If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Kids Will Discover The Importance Of The Lever And Its Crucial Role In History From Ancient Civilizations To The Modern Day; Perfect For Fans Of The Highlights Book Of How And The New Way Things Work.Think A Lever Is Just A Plank Of Wood? Think Again! Levers Have Been Used To Hunt Mammoths, Raise The Great Wall, And Even Defend The Crown Jewels.This Mighty Models Title Highlights Ten Important Key Moments In Which The Lever Leveled Up In HistoryFrom Being A SpearThrower To A Robotic Arm. Plus, Readers Build Their Own Working Catapult Using The Included BuildItYourself Model To See The Power Of The Lever In Action!Christine Van ZandtS Nonfiction Stem Book, Ideal For Readers 5 To 8 And Up, Captures The Marvels Of Early Machinery In An Engaging, Interactive, And Innovative Format For Budding Engineers, Historians, And Scientists.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.