<Dt> ISO 12757 - 2 </Dt> <Dd> 1998: Ball point pens and refills--Part 2: Documentary use (DOC) </Dd> <Dt> ISO 14145 - 1 </Dt> <Dd> 1998: Roller ball pens and refills--Part 1: General use </Dd>

If a pen is being sold at 4 profit