Challenge your problem solving skills with the Cast Valve metal puzzle. From Hanayama Huzzle, this intricately designed puzzle requires you to use your wit and persistence to disassemble and reassemble it. Made from high quality metal, this metal puzzle is both durable and visually stunning. Its unique design and challenging solution make it a standout among puzzle enthusiasts. Designed by Vesa Timonen, an accomplished designer from Finland, the objective is to separate the puzzle into three pieces. The challenge is not complete until you've reassembled it back into its original valve shape. Product Details Material: Metal. Category: Metal Puzzles. Difficulty level: Challenging, 8/10. Ideal for Gift for him or her. Brain teaser puzzle lovers and enthusiasts. Adults looking for a challenging and unique puzzle. Hard to buy for individuals. Birthday or Christmas gift. Those who enjoy metal mechanical puzzles and brain teasers. Custom metal mechanical puzzle collectors. Anyone looking for a unique and thought provoking gift or challenge for themselves or someone else. Note: Our level rating system is different than Hanayama's. Hanayama's level 1 is equivalent to our level 5, their level 6 is equivalent to our level 10.