In terms of micro-fine point pens, the Pentel Slicci .25 ranks consistently among my Three Jewels, one of my favorite “go to” pens that receives a lot of writing time. While the Uniball Signo Bit .18 is my favorite of all time (see earlier review), Pentel Sliccis rank either second or third, competing with another Uniball product (the Signo DX .28s) for the coveted silver or bronze.

Overall, the Pentel Slicci (.25 tip) is a solid and reliable pen and I think one would do well to have a couple of these in their pen arsenal. It is well-balanced and very lightweight, which makes writing with one a pleasure. Despite their weight, Sliccis are nicely durable. I always make it a habit, and count source of pride, to accidentally drop my pens immediately after putting them into use and even after a few such mishaps Sliccis have thus far emerged unscathed. Their durability (plus light weight) make them a great pen to carry along on travels.

While the .25 line width isn’t as narrow as some other pens I’ve used, it’s nonetheless adequate for my tiny handwriting. And with variation in pressure once can achieve a subtle, yet noticeable contrast between thick and thin lines, which is always a pleasure for those envious of the English Round Hand style of script.

One of the nice things about the Pentel Slicci .25 line is the selection of ink colors. To date I’ve tried blue, black, blue/black and brown and have been duly impressed with color quality. Vibrancy is especially apparent with blue as well as black. I’m looking forward to experimenting with some additional colors in the near future.

The only somewhat negative element of Pentel Slicci .25s that I’ve encountered is the occasional inconsistency with ink flow. Every so often ink flow will reduce almost to the point of stopping, which of course creates problems, especially if you’re frantically trying to catch a fleeting though before it is forever lost. I suspect this may have something to do with formulation of different color inks; it’s a problem I’ve encountered with blue ink, but not with any of the other colors tried to date.

The occasional ink flow issue notwithstanding, Pentel Slicci .25s are delightful writing instruments worthy of a place in the pen cases (or for the nerds out there: the slot of honor in shirt pockets) of anyone having a use for micro-fine point pens.