Nice saturated ink, flows really well too. My favorite thing about this
cartridge is the small metal ball that sits at the opening -- when you snap the
cartridge into a pen, the ball is forced up into the reservoir where it bounces
around and keeps the ink mixed! Really good design.
So far I've only used the Pentel Pocket Brush Pen and this one, but I like this
one much better. The ink flows faster, allowing fast strokes to stay more
saturated. The tip of the pen body is more tapered, so you can comfortably hold
it further down for more precise work. Also what's cool is the Kuretake ink
cartridges have a small metal ball blocking the hole - when you snap the
cartridge into the pen, the ball is forced into the cartridge where it stays and
keeps the ink mixed up. Awesome!
I think this is a pretty sturdy pencil component. It's scary to take apart at
first - if you look closely at the metal tube about half an inch above the
spring, you can see a small seam where the parts overlap. Pull hard and they'll
separate, but you have to be very careful: if you don't keep them perfectly
straight, the lead pieces inside can break.
These components work really well with the pen. The very tip of the cartridge
has a small ring that can't go past the tip of the pen body, so after the pencil
tip is already down, you just press the pen's button down a little more to make
tiny clicks that advance the lead inside the cartridge. It's easy once you try
This pen takes a little dexterity to load and change - you have to look down the
open barrel and push your refill into one of 5 holes until you feel a small
click. The buttons depress very smoothly, stay down while you're writing, and
pop right back up when you press a different one. The pen body is completely
smooth, and I love how the bottom is clear so you can see all your pen/pencil
tips lined up.
I'm so glad someone came out with a multi-pen that's this customizable. In mine
I have a black gel ink pen and 4 mechanical pencils (with graphite, red, orange
and blue leads). I LOVE IT, It's all I need for writing, sketching or drawing on
This pen is great-- 4 nice quality ballpoint pens, and a mechanical pencil. It's
everything I need. I wish the eraser was a little bigger, but they sell refills
so I'll deal with it. Overall, nice! Get the pen!