Thousand Sunnyki-gu-mi One Piece 3D Wooden PuzzleOfficial License No tools required Advanced level 139 pieces Completed size

Product Description Five Key Features Uses environmentally friendly material (wooden plywood) Flat before assembly, making it easy to ship as a gift. Easy and safe without using glue or scissors. Enjoy the process of creation and the excitement upon completion. The finished product is not only for display but also enjoyable to use. How to Make Wooden Art ki-gu-mi Start with a single board... Easily pops out with a push of your finger. Fit the parts together. Completion! No glue or scissors needed. Professor: Masahiro Nakagawa, Nagaoka University of Technology Engaged in research on fractal engineering, chaos neural networks, and the physics of liquid crystals. Member of the Japan Neural Network Society, the Physical Society of Japan, and the Japan Society of Applied Physics. Effective for brain activation (brain training) Results from collaborative research between Nagaoka University of Technology and the manufacturer indicate potential brain training effects. The "visual information" and "finger stimulation" during assembly contribute to brain activation. It may also help suppress the progression of dementia. Make your home time more enjoyable! [Official License] Meticulously recreates the Thousand Sunny from ONE PIECE in wood. Balances the joy of building with the satisfaction of display. [No Tools Required] Precision laser-cut wooden pieces fit together neatly without glue. Safe and easy to follow even for beginners. [Enjoyable Difficulty Level] 139 pieces / Estimated 3-4 hours. Just right for those who want to focus on details. [Easy to Display Size] Completed size 142×64×132mm. Fits easily on desks and shelves, blending well with wooden textures in your interior. [Great for Gifts] Compact packaging makes it perfect for gifts. Ideal for birthdays and anniversaries.