This is a set of four Sumikko Gurashi-designed pens that I received a while ago but haven't used: an oil-based Opt ballpoint pen and a mechanical pencil with a "shake to advance" feature. The designs on the bodies are as shown in the photos. The two on the right are ballpoint pens, and the two on the left are mechanical pencils. The ballpoint pens have 0.7mm tips, and the mechanical pencils have 0.5mm leads. These designs are quite rare, as they are no longer sold. They are new and unused. #Sumikko #SumikkoGurashi #Opt #Penguin? #Shirokuma #Tonkatsu #Neko #Tokage #MechanicalPencil #SharpPencil #BallpointPen #Yurukyara #EbiFryTail #Tapioca #Furoshiki #Zassou #San-X