gp380 frosted gel pen carbon black pen 0.5mm business office signature only for student exams black pen

gp-380 black gp-380 blue gp-380 red ordinary pen refill syringe black ordinary pen refill syringe red ordinary pen refill syringe blue ordinary pen refill bullet black ordinary pen refill bullet red ordinary pen refill bullet blue

syringe head 0.5mm bullet 0.5mm