The new Zebra Sarasa R has a color-based ink that has 27% more color density than the regular pigment-based ink. Those are just numbers, right? What does that really mean? Easy! The colors look more . Black looks blacker, and colored ink looks more colorful.
Of course, Sarasa R has the same iconic clip as Sarasa Clip - namely a unique clip design which means that it works a bit like a paper clip. That is, if you squeeze the top of the clip, it expands.
Some of the colors are available in a pack of 7.