A:
I'm sorry; I'm not sure what this question was in reference to. The item 443801 is a uni-ball pen, not a pen refill. Sanford 51411 will not work as a refill for this particular pen, either. Again, I'm sorry if this doesn't answer your question. Feel free to call us at 800.333.3330 if we may be of further assistance.
Answered on 1/3/2011 by Steve S. from Staples