GraviTrax Expansion Set - Lifter LEGO Gabby's Dollhouse Now race your opponent to

Now race your opponent to fill every space on the grid using the ten clusters

Will your kids find a Glowling

She even has obstacles with her so that they can practice for the upcoming tournament

The HEXBUG® Fire Ant's unique design elements were carefully chosen by our engineers to get children to think about the science behind our robots

GraviTrax Expansion Set - Lifter LEGO Gabby's Dollhouse Now race your opponent toTake marble run builds to the next level with the GraviTrax Lifter Expansion. Designed to work with GraviTrax Starter Sets, this clever add on lifts marbles to higher track levels, helping kids create bigger layouts with exciting vertical action. Key Features: GraviTrax Lifter Expansion for marble run play Automatically lifts marbles to higher track levels Adds vertical movement to GraviTrax builds Compatible with GraviTrax Starter Sets Encourages