| Management number | 213328377 | Release Date | 2026/04/12 | List Price | US$36.00 | Model Number | 213328377 | ||
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Crafted from Walnut, Cherry, and Cloth, this himitsu bako, designed for the 'Heartbeat' exhibition, challenges you to unlock and remove the ring. Released in March 2013, it bears Mr. Kawashima's hanko and measures 2.44 x 2.44 x 2.01 inches, arriving in a gift box with opening instructions.
| Size | 2.44 x 2.44 x 2.01 inches |
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| Color | Dark Brown |
| Theme | Japanese Puzzle Box |
| Brand Name | Puzzle Box World |
| Item Shape | Rectangular |
| Skill Level | High |
| Manufacturer | Puzzle Box World |
| Power Source | manual |
| Material Type | Walnut, Cherry and Cloth |
| Operation Mode | Manual |
| Additional Features | Designed for the exhibition 'Heartbeat', Hanko stamped on the bottom of the puzzle, Requires solving to remove the ring |
| Included Components | Gift box and opening instructions |
| Age Range Description | Teen and Adult |
| Educational Objective | Logical Thinking, Patience Skill, Problem Solving Skill |
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