27 steps Yosegi(top panel)/Ichimatsu 5 sun Japanese puzzle box Himitsu-bako [5-27yni]

*The traditional yosegi pattern is different on each box, so it may not look exactly the same as in the photo. The traditional yosegi is used only on the top panel. The bottom panel is made with either sliced walnut wood or makore wood (you cannot choose which one). The side panels are made with checkered yosegi.

Opening method of the puzzle box: 27 steps
Moving panels and slide keys: 4 panels / 2 keys
Outside size: 5.90 x 3.90 x 2.70 in (150 x 100 x 68 mm) = 5 sun
Inside storage space: 3.9 x 3.0 x 1.57 in (100 x 78 x 40 mm)

Includes a description sheet (solution guide on how to open) and a gift box.

This is a 5-sun size Japanese puzzle box. “Sun” is a traditional Japanese unit of measurement, and 1 sun is about 1.18 inches (3.0 cm). The box is opened in 27 steps. It has 2 slide keys and 4 sliding panels. The design is traditional Ko Yosegi (only top panel), and the box is made entirely from wood. This puzzle box was handcrafted by Hiroyuki Oka.

"The Japanese puzzle box (Himitsu-bako) is made only of wood, environmentally-friendly products. This a one of traditional art work of Japan. The origin goes back even to the Edo and Meiji era (1800s) in Japan. It has been handed down by the very few craftsmen. I am crafting full-time these puzzle boxes by myself. I had training for 10 years and I'm crafting these Japanese puzzle boxes and Yosegi-zaiku for over 20 years. All items are made in my workshop and shipped to you directly. I will promise that all boxes are of good quality. My Puzzle boxes will move smoothly, because I will check and test all puzzle boxes before shipping. If you have a question, Please feel free to ask me anything. Thank you!. Hiroyuki Oka"

The puzzle box outside (Length) size : 1 sun (Mame / 4.3cm / 1.70inch) , 2 sun (6.0cm / 2.35inch) , 3 sun (9.0cm / 3.54inch) , 4 sun (11.6cm / 4.56inch) , 5 sun (15.0cm / 5.90inch) , 6 sun (18.0cm / 7.00inch) , 7 sun (21.0cm / 8.25inch).