press gel pen k35 carbon pen 0.5mm black student learning ballpoint pen conference signature pen office stationery

black blue (blue core) red (red core) white penholder black characters black boxed (send a box for 12 pieces) green rod black characters yellow rod with black characters pink black words sky blue rod with black characters candy color boxed (buy 5 pieces and send 1 box) original press black refill original press red refill original push blue refill

0.5mm