Bring your marble run to life with the Hubelino 420596 Ball Pump Expansion Set, an interactive accessory that transforms your track into a continuous loop. Watch as colorful balls are lifted skyward through transparent tubes, powered by a clever mechanical pump—no batteries required. This STEM-focused building set encourages creative construction and hands-on learning, making it ideal for young engineers and builders.

Toy Features:

• Self-contained ball pump circulates marbles without electronics or batteries
• Transparent tubes allow full visibility of ball movement and mechanics
• Modular design integrates seamlessly with any Hubelino marble run and standard building blocks
• Rotating ball guide and spout enable dynamic track configurations
• Promotes STEM learning through playful exploration of physics and engineering

What's Included:

• 1 ball pump, 3 connecting pipes, 1 ball spout, 1 ball guide, and 18 colorful balls (24 pieces total)
• No batteries required or included
• No assembly required—ready to play right out of the box

Safety & Quality:

• Age: 3 years and up
• Manufactured in Germany to the highest quality standards
• Made from durable plastic materials
• Small parts—choking hazard; not suitable for children under 3 years

Expand your marble run adventures with Hubelino’s innovative, educational building system—where fun meets learning in every block.