The Kakoi Puzzle box was designed August, 2016 Winner of the 2017 Nob Yoshigahara Puzzle Design Competition Jury Grand Prize! Shiro Tajima describes his puzzle as: "This is the box with two colors. The box which got an idea from a Japanese kanji letter like "Tagai". Crafted in Monarch Birch, Black Walnut and Japanese Cherry, it can be opened in a small number of coordinated steps. Measures approximately 3.94 x 3.94 x 3.94 inches (100 mm x 100 mm x 100 mm). Will arrive in High Quality Gift Box and opening diagram.