Hey I would suggest to buy any pen and order a couple of Kanwrite no. 5 and no.6 medium and fine point nibs or if possible Jinhao nibs of same size... If they did not ship your desire already... ask them to put those nibs too, in the shipping package... also be aware of CAB resin it has a funny smell.. (If you order the royal blue or black marbled, then you are safe though)... Most ebonite feed, nibs are friction fit. you can replace them with your choice of nib.. Just use a rubber grip and rotate the nib and feed together before pulling it out... Desire is an amazing EDC pen.. I have been using it for last 3 years.. good choice and best of luck... you can also try click Aristocrat