This is my favorite multi-pen. I already have the blue, soft blue, and soft green versions so the clear one is my 4th pen. I like it because it is easy to refill, has a comfortable grip, and the clip makes it easy to attach to things.

Even though the Acroball ink (ballpoint) is amazing, I am also fond of gel ink. The Uni Style Fit refills fit in this pen body which is nice for when I want to add a gel refill now and then. Gel can be fun, but ballpoint is better for my needs since it does not smear with highlighters and writes nicely over correction tape.

The Uni Jetstream is a strong competitor, but I still like the Acroball more since the ink is smoother and the ink is be overall.

Great pen body, and nice grip. The original refills were nice quality but i tossed out the red, green and blue (they were too thick) and put a 0.5 jetstream black, 0.5 uniball signo ink black and 0.5 uniball signo ink blue and now it's my dream pen because I love clear pens. Good quality and very sturdy.

Pretty cool multi-pen and Acroball or Uni Jetstream are by far the best ballpoints.

This is a smooth writing pen one of the best I've ever written with.

Writes smooth, ink doesn't glob, feels great and ergonomic in the hand