The nuts are trapped, the bolt is sealed at both ends and at first it seems that Nutcase is an exercise in futility. But soon you'll notice that the two nuts spin across the bolt in opposite directions. You may even discover a mysterious little wiggle...
Designed by one of our all-time favorite puzzle creators, Oskar van Deventer of Holland and produced by Hanayama of Japan, the Nutcase pocket puzzle is a real head spinner. If you do manage to free the nuts from the bolt, you may be interested in an additional twist: Can you switch the positions of the nuts on the bolt so that instead of reading "Nut Case," they read "Case Nut?"