Catapult Engineering NEW! Interactive Card Game Extra-large pieces are designed to

Extra-large pieces are designed to be easy for children to pick up

Shapes range in size from 0

sized for busy learning environments

Extra-large pieces designed for little hands

little ones can listen to seagulls

Catapult Engineering NEW! Interactive Card Game Extra-large pieces are designed toCatapult Engineering Thames & Kosmos Recommended for ages 8 years and up, combining history, engineering, and physics in one engaging kit. Build 6 working models of medieval siege devices: crossbow, reverse draw crossbow, onager, catapult, trebuchet, and ballista. Learn about force, energy, motion, and trajectory through hands on experiments while launching safe projectiles. Specially designed for safety with soft foam balls and foam tipped