A variation of Oskar van Deventer’s gear puzzle range is the Gear Ball developed by Meffert. Just watching the mechanism turn is mesmerizing. Imagine trying to solve it once it’s really messed up!
A variation of Oskar van Deventer’s gear puzzle range is the Gear Ball developed by Meffert. Just watching the mechanism turn is mesmerizing. Imagine trying to solve it once it’s really messed up!