3 Sun 18 steps boxes. Comes packed in an attractive box. 3 Sun boxes are the most popular size, offering a substantial box at a reasonable price. This 18 step version is very unusual in the number of steps. It is from the studio of Hiroyuki Oka.

A puzzle box (also called a secret, or trick box) is a box that can only be opened through some obscure or complicated series of manipulations. The puzzle box originated in the Hakone region of Japan at the turn of the 19th century as the Himitsu-Bako, or Personal Secret Box. If opened, a puzzle box usually contained a sort of good luck charm. These boxes are made in various complexities, and consist of moves with a variety of twists to trick the person trying to open the box, but the real trick is finding the correct series of movements that can range from two to 1500+ moves.