There have been some discussions about this, but I wasn't clear from the threads I read the final answer. If I missed it elsewhere, thanks for repeating.
I really like the Sierra (twist) pen, but want to make it as a rollerball. Is anyone aware of a refill that work without modification? Thanks.
I really like the Sierra (twist) pen, but want to make it as a rollerball. Is anyone aware of a refill that work without modification? Thanks.