Gravitrax Expansion Tunnels Add On for Marble Interactive Track System Astro Boy A truly deceptive illusion this

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

Set includes:Instructions

For longtime fans and for a new generation of kids who love action and adventure

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With the Marvel Legends Series

Gravitrax Expansion Tunnels Add On for Marble Interactive Track System Astro Boy A truly deceptive illusion thisONE 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