Bring science to life with fun and imaginative toys from Koontz.
Build your own working catapult from strong, easy-to-assemble, precut durable and recyclable cardboard parts and elastic string. Test how far you can hurl the polystyrene ball supplied and discover how such a simple idea generates so much power.
Instruction leaflet also includes information on the history of the invention, its use in warfare in the past and the present plus ideas for play.
Dimensions: 15cm (w) x 23 cm (h) x 3 cm (d)
Suitable for ages 5 and up.