The Valve is a level 4 Huzzle puzzle and was created by Finnish puzzle designer Vesa Timonen. The hint to the solution is to decipher the hidden mechanism of the maze by rotating each of the six corners and interior pieces.
Brand Huzzle Manufacturer Hanayama Material Cast metal
Hanayama is a japanese toy company formed in 1972. They are best known for their "cast" series of cast metal puzzles which include reproductions of older designs, and new puzzles by designers oskar van diventer and akio yamamoto.
Hanayama rate their puzzles with a difficulty level ranging from 1 to 6. the difficulty increases as the number ascends.