KOKUYO OFFICE SYSTEM This is a strap set from Kokuyo Office System Co., Ltd. Kokuyo Office System seems to be a company that ceased to exist after being absorbed and merged in 2010, so I believe this is a rare item. Miniature versions of Kadokeshi (eraser) and sticky notes have been made into straps. I believe this was likely a promotional item not for sale. For some reason, the logo printed on the sticky notes appears reversed when viewed from the front. As this has been stored for a long time, the outer bag has tears and stains. I think this is quite a niche item for stationery lovers.