Amami's Japanese miscellaneous goods series "Tsumugu TUMUGU" is a product born from the desire to create new Amami specialties in the year that Amami was registered as a World Heritage Site. Both the envelope and the one-stroke paper with Oshima Tsumugi's design not only convey the traditional emotion of Amami, but are also manufactured using bamboo paper from Kagoshima Prefecture as a raw material, and are committed to SDGs 12 "Responsible Consumption and Production." Bamboo paper is not only environmentally friendly, but also smooth to the touch, very comfortable to write on, and the number of repeat customers is increasing. One stroke is one book of 30 sheets, and the envelope contains 5 sheets. The single stroke is the size that fits in an envelope.