I have a blue Preppy like this to hold blue ink. It's OK for the price but mine cracked in the thread area on the barrel (where it shows the nib size number) while in a pen bag with several other pens (which were fine). It is usable after taping it but would suggest something sturdier even if it is a little more expensive. A Jinhao or Baoer is nearly the same price on eBay. IMHO, even a Pilot Petit seems sturdier.