OBEST Kongming Puzzle, Wooden Puzzle, Time Killer, 3D Puzzle, Stress Relief Toy Set, Includes Walkthrough, Suitable for Ages 6+

[Kongming Puzzle Toy]: This traditional Chinese toy features cleverly interlocking concave and convex parts (lambda structure) inside the puzzle. Assembling and disassembling the puzzle helps develop observation, imagination, and reasoning skills, and also helps prevent dementia in the elderly. [9-Piece Set]: With nine different puzzles, you'll never get bored. Experience the sense of accomplishment you'll feel when you solve this puzzle! Instructions for solving the puzzle are included. [Safe Material]: Made from natural wood, odorless and non-toxic. The safe paint meets Japanese safety standard ST2012 and the puzzle corners are precisely polished to ensure no harm to the human body. [Quality Guarantee]: If you have any problems with any products purchased from our company, please contact us immediately. We will resolve any issues promptly. Please rest assured. [Recommended Ages]: Ages 6 and up. Item Weight: 0.5kg.