"Jikji" is the world's fit metal type. It is a key chain designed to promote this. The front is a printed letter and the back is a type shape. “直地”是世界上第一個(gè)金屬活字。為了廣為宣傳而設(shè)計(jì)的鑰匙鏈。正面是印刷的文字,背面是活字的形狀。 "Jikji"l was produced in korea ahead of the western type of Gutenberg.