Klein Bottle

The closest you'll get to a 4D object in our universe A Klein Bottle is a 4-dimensional shape that has neither an inside nor outside. If you trace a path along its surface, you will travel on both sides of the surface before returning to the starting point. In the mathematical field of topology, it is a 3D immersion of a closed, one-sided, non-orientable, boundary-free manifold. A true Klein Bottle does not intersect itself, so it can only fully exist in 4 dimensions. But in the same way a 2D shadow is cast by a 3D object, this can be considered the 3D “shadow” of a 4D Klein Bottle—the closest we can get in our universe. A perfect gift for a math or science enthusiast. Height: 4.3"Handblown with laboratory-grade glass.Comes with info card AGE: 14 and up