e/Flex nibs

Information
has gloss	eng: Flex or flexible nibs are fountain pen nibs which produce a line which varies in width with the pressure used. A very flexible nib can produce a width variation of about six times. Extremely flexible nibs are sometimes known among collectors as "wet noodles".
lexicalization	eng: Flex nibs
instance of	(noun) a writing implement with a point from which ink flows pen