GraviTrax Expansion Trax International Playthings a massive beak

a massive beak

Each unique configuration promotes hands-on experimentation

(And they are mannerly guests too - never leaving a trace of their presence

fingerprint powder

The cheerful gift packaging saves gift wrap paper and can be individually labelled with names

GraviTrax Expansion Trax International Playthings a massive beakThe Extension Trax contains many different basic components and 6 balls to extend the ball track. Combined with any GraviTrax starter set, the Extension Trax brings even more variety and ball fun to the GraviTrax universe. How much longer can the ball roll with the new elements? GraviTrax is a flexibly expandable, interactive marble run system for children aged 8 and over: With GraviTrax, children, teenagers and adults don't just build simple marble