that's true if you like invisible ink.

The ink flows really well and I never have difficulty getting a nice consistent glide

The ink doesn't leak and they last a long time.

Even when you think they have dried up, all you have to do is rub the pen back and forth between your hands and it warms the ink, allowing it to have a fresh start

Great black ink pens.

Good ink that doesnt dry out fast so pens last a long time especially since i work in a hot

that's true if you like invisible ink.

The ink flows smoothly and it doesn't smear.

Generic, typical business blue ink, completely unmatched to the blue on the outside.