Pilot Hi-Tec-C Slims Gel Ink Multi Pen Refill - 0.4 mm - Black

A nice quality refill. Tried it to get the Hi-Tec-C experience in a Sharbo X multipen. Unfortunately, it's too loose and won't fit snug. The refill will fall out of the pen if your try to use it. A remedy was to put a small piece (2mm long) )of scotch tape on the top of the refill, and it will fit with friction. The ink is not as good as the Sharbo X refills (not as water-resistant), but will be smoother to left-handed writers.