J. Herbin Refillable Rollerball Bundle (3-Pack)

I've had these pens for over 6-8 months and they work just fine, no cracks or leaks. I will agree the Herbin cartridges do run dry and I've just switched ink and have no problems. I haven't even applied anything to the seal/gasket yet that's how well they have worked. no complaints (other than they are a bit pricey for a rollerball, but if you like custom colored ink in your rollerball... these are for you.

Get penbbs 350 fountain pen comes roller ball also . The roller ball works.9 week no problems .

I have ordered these pens twice through mass drop in the past and all six have failed me. They have either cracked or they begin to leak at the tip where the black rollerball portion exits the clear body. I did enjoy them while I have them and the do have a steep writing angle. All in all I would not recommend these pens.