Kullerbu Colorful Curves Build & Grow 39-Piece Ball Track Set

Loops, ramps, and rolling balls — this 39-piece Kullerbü ball track set gives young builders plenty to experiment with. Choose a layout, connect the pieces, and watch the balls speed around the curves.

It's made for kids aged 2 and up, and the click-together system means assembly stays frustration-free for little hands. Each build quietly works on fine motor skills, spatial awareness, and problem-solving. Compatible with all Kullerbü track systems, the set can be extended as your child's abilities develop.

What makes this Kullerbü set worth having

• Early STEM skills: Coordination, logic, and first engineering ideas come into play with each new arrangement.
• Independent building: Montessori-style, hands-on problem solving that kids can lead themselves.
• Lots to rearrange: 39 track pieces, ramps, dominoes, and rolling balls are included.
• Grows with your collection: Works with all other HABA Kullerbü marble runs and track sets.
• Built for daily use: Child-safe, high-quality materials for lasting play.

Race marbles down the ramps or set off a domino chain reaction — either way, it's screen-free play that changes as your child grows.