Made of eight connected cubes, the Infinity Cube folds over itself continuously. The hinges are loose, so it flows over your fingers like a solid liquid (if that makes sense).
This non-metal version is quieter than the metal versions but still makes a click-clack sound as it's used.
This one is Toffee's favourite. He can often be found playing with it when he's supposed to be picking orders. But I don't mind, it's great to see someone enjoying something isn't it?
