Object of Constant Width

This is a geometric solid, that has an equal diameter, so when rolled between two flat surfaces (see video below) will act as a sphere, even though it is not. The shape is based on a Reuleaux triangle, which has a constant width in 2D. This model is the 3D version, allowing a constant width in 3D. Because of this constant width in 3D, it allows this solid to act like a sphere. This concept is very interesting because you wouldn't think anything except a sphere could roll in this way, but this ma