black signature pen printing logo advertising qr code business promotion posture gel pen lettering with hand gift pen

black cover (black core) white shell [black core]] yellow shell [black core]] blue shell [black core]] green shell [black core]] purple shell [black core]] pink shell [black core]] replace black refill/3 pieces replacement red refill/3 pack replacement blue refill/3 pack black cover [blue core]] white shell [blue core]] yellow shell [blue core]] blue shell [blue core]] green shell [blue core]] purple shell [blue core]] pink shell [blue core]] black cover [red core]] white shell [red core]] yellow shell [red core]] blue shell [red core]] green shell [red core]] purple shell [red core]] pink shell [red core]]

z101/0.5mm gel pen