GraviTrax: SkyTrax Medium Actieset

The slides are where the magic happens — watching the marble twist down them never gets old, even for me. My 12-year-old spent the whole afternoon rebuilding the track into different configurations without a single frustrated sigh.

The sky stones are the highlight—my kid spent a whole afternoon dropping marbles through them and watching the slides twist the track in ways I didn’t expect. It’s sturdy enough for repeated builds, and the expandable pieces mean we’re already planning the next set.

My eleven-year-old has rebuilt this track at least six times since it arrived, and the way the marble drops through the sky stones before sliding down the spiral keeps him focused for way longer than his usual screen time. The pieces click together firmly enough that a build survives a cat walking t