Spare Nib Set for Vac700 fountain pen. DO NOT use for R version. 

Quick and easy change. No hassle.

If you write small, go with an EF
For the normal writer, F is the most popular
If you tend to lean on a bigger font, M will be perfect
B is for statements!! Sign a check in B, write a header in B, do some coloring/shading in B

Stub nibs are italic in writing style (have a special card or invitation to write?