k35 gel pen 0.5mm large capacity carbon brush questions black pen bullet ball pen stationery office supplies pressing pen

black pen red pen blue pen black refill red refill blue refill black boxed-12 pcs red boxed-12 pieces blue boxed-12 pieces 10 pens +10 refills [black]] 10 pens +10 refills [blue] 10 pens +10 refills [red] 12 pieces per box +20 pieces refill [black]] 12 pieces per box +20 pieces refill [blue] 12 pieces per box +20 pieces refill [red]

0.5mm