A special collection of compact mechanical puzzles where hidden interactions, concealed movement, and layered discovery take center stage. The Hidden Mechanisms Set was carefully curated to showcase three collectible puzzles that prove size has little to do with complexity. Beneath their elegant and often minimalist appearance lies a world of hidden logic, secret mechanisms, and surprising mechanical ingenuity waiting to be uncovered. Each puzzle in this collection offers a completely different solving experience, yet all three share a common philosophy: the true puzzle is hidden beneath the surface. From handcrafted Japanese puzzle artistry to precision mechanical interactions and sequential discovery challenges, this collection rewards patience, curiosity, observation, and experimentation. These are puzzles designed not simply to be solved, but explored. Mini Secret Puzzle Box Lock #2 Handcrafted by the Karakuri Creation Group - Japan Difficulty Level: 2/5 The Mini Secret Puzzle Box Lock #2 transforms the traditional lock into a beautifully crafted hidden-mechanism puzzle. Created by the legendary Karakuri Creation Group of Japan, this compact puzzle combines fine woodworking wit