Lennon Tool Bar was founded in 2014 at Tamsui, Taiwan. Initially we produce and promote arts and crafts of Indigo Dyeing, a business that flourished a century ago, when Taiwan exported a considerable amount of "doroai," or the raw material of colorants used in Indigo Dyeing, to the Japanese Empire. In recent years Lennon Tool Bar launches a series of fountain pen ink in order to popularize colors used in Indigo Dyeing and to present the enduring beauty of the traditional workmanship.