Hanayama Valve

The hint to the solution is to decipher the unseen mechanism of the maze by rotating each of the six corners and inside pieces.

Designed by Finnish designer Vesa Timonen.
Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 5 puzzles are considered difficult by most puzzlers.