Thames and Kosmos Catapults & Crossbows 146 Ravensburger Thomas & Friends -

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Thames and Kosmos Catapults & Crossbows 146 Ravensburger Thomas & Friends -Take a walk back in time and explore some classical weapons from the medieval ages with this experiment kit from Thames & Kosmos. It has everything you need to build five different crossbows and five trebuchets and catapults including a ballista, scorpion, mangonel and weighted catapult. This kit is perfect to keep you engaged while educating you about motion, force, projectiles and energy. Thames and Kosmos Catapults & Crossbows Specs Manufacturer: