Items Included: Plywood, Spring
Number of Pieces: 229
Difficulty Level: ★★★★☆☆
Assembly Time: About 5h
Age: 14+
Package Size: 370*250*50.5mm
Assembly Size: 300*215*250mm
MECHANICAL GEAR DRIVE – The airship takes the spring potential energy as the power output, and the whole mechanical gear structure transmits the power to experience the pleasant feeling of mechanical transmission.
