The Yoshimoto Cube is a polyhedral mechanical puzzle toy invented in 1971 by Japanese man Naoki Yoshimoto. The cube is made up of eight interconnected cubes and it is capable of folding and unfolding itself in a cyclic fashion. You can keep folding, or unfolding the cube, indefinitely. Once folded, the cube can be turned into two rhombic stellated dodecahedrons. Yoshimoto discovered that these two shapes could be pieced together into a square when he was finding different ways he could split a cube equally in half.

As a work that delves into the aesthetics of math and geometry, it was selected in 1982 by the Museum of Modern Art in New York for inclusion in its permanent collection. It makes a great toy for children, or a desktop object.

We used to sell the original Yoshimoto Cube. Sadly it is no longer made, for reasons I don't understand. I noticed that Rubik’s from Rubik's Cube fame is now making a 'Magic Star'. This is basically the same but with multi-coloured squares rather than silver and gold squares.

• Fun Puzzle
• Same shape as Yoshimoto Cube
• From the Makers of the Rubik’s Cube