DUO - the Extra Set for parallel double runs kids back pack this puzzle transforms free time

this puzzle transforms free time into interactive fun that encourages communication

First level has door with secure magnetic closure and window

Perfectly incomplete

stylized display

If your structure holds for more than three seconds

DUO - the Extra Set for parallel double runs kids back pack this puzzle transforms free timeWith 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