In the maker's words
A great medium-level Hanayama cast metal puzzle by Bram Cohen. The Rattle puzzle is made out of four identical interlocked pieces The object of the puzzle is to take apart the four pieces and then put them back together. At first, this task will seem easy because all pieces are fit loosely, however, this is not the case. The R attle is a medium-level puzzle and a great challenge for the enthusiastic puzzler.
More from Metal Enigmas
The whole realm → 
