Dutch Rings is a puzzle ring designed in 1989. It is inspired on the classic "Turkish" puzzle rings, but using a cubic grid instead of smooth bands. The object of the puzzle is the same. Mix up the bands and then try to reconstruct the ring. The nice thing about this puzzle is that all pieces are linked together, so pieces cannot get lost.
This is the metal version of the puzzle. Buy the cheaper plastic version here.
Please order a 3D-printed do-it-yourself puzzle kit from Shapeways at this page (check with Oskar about coloring), or contact Oskar directly if you are interested in obtaining the metal version ready to play.