This mechanical DIY wooden model of a walking tyrannosaur is driven by a metal spring, which transmits power through a reduced gear, turning the axle that drives the legs. 14yrs Assembly time: 8hrs # of parts: 249 Level: hard

• Made in Ukraine • Dimensions: 14.7″ x 6.7″ x 2″ (37.3 x 17 x 5.1 cm) • Weight: 1.4 lb (0.6 kg)