4 sun 12 steps Zen characters Japanese puzzle box Himitsu-bako Karakuri puzzle

*This "Zen" character is printed and pasted on the top panel. Zen is a school of Mahayana Buddhism. The bottom panel is made of Natural wood. Gimmick for opening the puzzle box : 12 steps Moving panels and Slide keys : have 3 panels / 2 keys Outside size : 4.5 x 3.2 x 2.1 inch (115 x 82 x 53 mm) Inside storage space size : 3.00 x 2.51 x 1.49 inch (76 x 64 x 37 mm) Include Description (solution sheet of how to open) and the gift box 4 sun size Japanese puzzle box. 4 sun is a Japanese measurements. 1 sun is about 1.18 inch / 3.0 cm. This puzzle box is opened by 12 steps. The design of the side panels is Ichimatsu wood mosaic (Yosegi). All the internal gimmicks are made of wood, so the warmth of wood. The simple and gentle movement of the mechanism gives healing and comfort. The surface of the puzzle box is painted with a safe transparent paint.