This is a super cool steam Locomotive model 3D wooden puzzle. It has a spring-driven core to achieve full mechanical gear transmission. Build it by yourself and simulate the smooth train movement.
- Number of Pieces: 349
- Difficulty Level: ★★★★★☆
- Assembly Time: About 6h
- Age: 14+
- Package Size: 370*250*50.5mm
- Assembly Size: 370*120*185mm
