With DUO, not just one marble rolls. Two can start a race at the same time. The elements enable parallel runs and turn your construction into a playground for exciting races or harmonious synchronized runs.

Whether one Marble or two: DUO is an Extra Set for all those who like to compare, experiment and sometimes think two ways at the same time.

Naturally ingenious, beech wood

Our cubes come from the forest - more precisely: from sustainably managed Swiss beech forests. The wood is robust, durable and comes directly from the region.

Each cube remains untreated, completely natural - so you can still feel the characteristic feel of the wood. Because it not only looks good, but also shows responsibility, it bears the "Swiss wood" label.

Genuine sustainability from nature - a raw material that grows with you, just like the joy of playing.

Playing safely

CUBORO elements are robust, durable and naturally free from harmful substances - so they are safe for skin or mouth contact, even for people with allergies. To ensure that everything runs smoothly during play, each Element is carefully sanded - for clean edges and a safe, pleasant playing experience.

Our marbles also play it safe: they meet the highest safety standards in the industry. Nevertheless: small balls - big effect. Please keep out of reach of children under 3 years of age.

This set contains:

CUBORO - DUO - the Extra Set for parallel double runs