O Band
It is the packaging of the rubber band.
"Imatake played a pioneering role in the world of graphic design. He left great achievements in the arts and culture of Kansai, especially in the field of design." - http://otanimuseum.jp/exhibition_201010.html
Shichiro Imatake Exhibition - 20 years after his death - was held in October 2020 in The Otani Memorial Art Museum, Nishinomiya City ( http://otanimuseum.jp/exhibition_201010.html)
