GraviTrax Murmelbahn - 2 Minuten Bahn - Mega lange Version - YouTube
Gravitrax Khalifa - HUGE Tower out of Gravitrax | Honobirn - YouTube
GraviTrax World Record | Big, bigger, world record! 🏆 Over the weekend we built the largest GraviTrax track in the world! A huge thank you goes to Jelle's Marble Runs and all