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Build an adorable robotic gecko that defies gravity to crawl up
Measures approximately 27 x 20 inches (70 x 50 cm) when completed
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All GraviTrax lines and products can be freely combined with each other
Ravensburger's expandable construction set uses STEM-friendly concepts as young engineers develop critical thinking and problem-solving skills
Catapult Engineering 6 in 1 kit boys Build an adorable robotic geckoInvestigate physics using technology from medieval times! Build six sleek, updated models of catapults, trebuchets, and other medieval launchers. These classic siege weapons from the middle ages also happen to be great tools for teaching physics, including lessons in force, energy, motion, and projectiles. A catapult is a medieval ballistic device that uses mechanical rubber bands and counterweights to fling projectiles in this case, foam balls into
