This is a secret box made of Hakone Yosegi-zaiku. The box appears to be completely closed, but the lid opens by moving various parts in a specific order. This item opens with a four-step process. The opening instructions start from the 11th photo. Hakone Yosegi-zaiku was designated as a "Traditional Craft Product" by the Minister of International Trade and Industry in May 1984. "Hakone Yosegi-zaiku" creates patterns by combining various colored woods, using the natural colors of the wood. Approximately 12 x 8 x 5.4 cm This item has been stored at home for a long time and shows some minor stains and discoloration.