Space Rail , DIY Physics Spacewarp Rollercoaster Model Kit 16,000mm Rail, 342 in 1(Black)

1. 16,000mm rails included
2. Create yourself rollercoster like rails with 360-degree flip overs, steep drop and climbs, sharp high-G turns, etc
3. Control speed, angle, timing by arranging your own railway
4. Steel space balls
5. Learn physics hands on
6. Endless rail design possibilities
7. Use 1xA Battery (no include)
8. Size: 71x20x36cm
9. The Size of the color box: 39.6x28.5x8.3cm
10. Level 3