GraviTrax Expansion Looping by Ravensburger Art > Craft > Velvet Art This rule is intended to

This rule is intended to preserve the breeds elegant build and spirited character

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GraviTrax Expansion Looping by Ravensburger Art > Craft > Velvet Art This rule is intended toAdd even more fun to your GraviTrax layouts with the Loop Expansion. Watch as the force of gravity moves your sphere through the loop. More product information Experience the power of Gravity! GraviTrax is the all new STEM track system from Ravensburger! Use your imagination to build superb tracks and set the gravity spheres rolling! The GraviTrax Loop with add another element of fun to your layout. You will need to figure out how much momentum the