Available in a variety of materials
In geometry, the tesseract, also called an 8-cell or regular octachoron or cubic prism, is the four-dimensional analog of the cube; the tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of 6 square faces, the hypersurface of the tesseract consists of 8 cubical cells.
Also: It just looks really good standing on your desk
7.484 w x
7.466 d x
2.946 w x
2.939 d x