This is a cute and compact ballpoint pen. The mechanism is flawless and the pen itself is made of robust stainless steel. It is slightly bigger than the Zebra Mini Ballpoint Pen T-3 but still very compact and easily fits discreetly in a purse or a shirt pocket. The transaction was also flawless and smooth. Thanks to the Bumbo team! I hope that they stock more Japanese stationery in the future!