Gravitrax Expansion Tunnels Add On for Marble Interactive Track System Astro Boy Action figures sold separately

Action figures sold separately

raises his arm

Precision made from brass

A truly deceptive illusion this clever prop can be integrated into a wide variety of comedic close-up or stage routines

Gravitrax Expansion Tunnels Add On for Marble Interactive Track System Astro Boy Action figures sold separatelyONE BRAND NEW GRAVITRAX EXPANSION TUNNELS ADD ON. This expansion tunnels are an add on only to the starter set, which you must already have and is sold separately. GraviTrax Tunnel extension is a great tunnel system and provides on the ball track for many moments of surprise. Especially if the tunnels are directly connected to the switch therefore spectators cannot calculate where the ball will be next. With the tunnel system, the ball track has not