Product Description This is a discontinued Pilot fine-point 4-color ballpoint pen. *Case not included.* Condition: The pen has been in this condition since I acquired it: The ink cartridge will not extend unless the knock button is pressed firmly and deeply. It is unknown whether this is the pen's original specification or an individual variation. *Please purchase only if you understand this point.* No returns or exchanges, please. Other than the above, the exterior and condition are in good shape. This is a rare model, so would anyone looking for it like to have it?