Gravitrax Expansion Lifter Add On for Marble Interactive Track System Exploder A must for puzzle lovers

A must for puzzle lovers

and multiple points of articulation

Banknote balanceBorrow two bills and balance one on top of the other in an impossible way

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Gravitrax Expansion Lifter Add On for Marble Interactive Track System Exploder A must for puzzle loversONE BRAND NEW GRAVITRAX EXPANSION LIFTER ADD ON. This expansion lifter is an add on only to the starter set, which you must already have and is sold separately. The lifter expansion set takes your marble run experience to a whole new level with over 25 additional elements. Once the marble reaches the bottom, raise it up to 2 levels higher using the lifter Add on: a button operated elevator. Experiment with additional tracks, height tiles, and one