Puzzle Details
Designed by Oskar van Deventer, the design was stolen from a Shapeways print.
After first knock-off copies had been sold, the puzzle was finally "legalized" by an arrangement with Oskar and attaching a sticker with his name on it.
Mechanics is a little bit stiff but in general an exactly turning, stable puzzle.
Size: 7,9cm edge length
Weight: 265g