Refill deleter Corretto GR-1609 blue 3 pcs

refill to ball point pen deleter GR-1609 with a unique ink - track, after being heated by friction using a special plastic on the end of the pen at 60 ° C become invisible, after erasing can be immediately rewrite, line thickness 0,7 mm, refill lenght 11 cm, in package 3 pcs