This is a new, unopened item. It's a three-color ballpoint pen with the Pfizer company name on it. It's a valuable item because it's a promotional item that is no longer available. The button in the middle of the barrel is for retracting the pen tip. You can also retract the tip by clicking the back, but this button is convenient because you can retract the tip with your thumb without changing your grip. Clip-on G 3C 3-color ballpoint pen With rubber grip Price: ¥330 Ball diameter: 0.7mm Ink colors: Black, Blue, Red Size: Shaft diameter 13.2 x total length 143.0mm Weight: 12.8g Type... Multi-color ballpoint pen