What can run freely on a flat surface?
A sphere, a cylinder, a cone probably, not in a straight line though.
Is that it? No, there is more…
One cannot imaging what objects can roll as smooth as a wheel
A Konoid is an artistic representation of a mathematical object called Sphericon.
It’s hard to believe that being placed on a slanted flat surface it rolls freely in a straight line.
Well it wobbles a little, but it will not stop.
It’s available in three different sizes and many materials
OctoRoller Classic is the most basic wireframe form of a Geometric object Sphericon.
On a slightly tilted surface it will roll straight wobbling a little.
Available in different sizes