Uni-ball Color Pencil Lead - 0.5 mm - Green

These are great leads for sketching and artist's guidelines. Although the mint blue (or soft blue) is by far the nicest of Uni-ball's colors, the green, red, orange, and blue are all great alternatives to the traditional Col-Erase erasable colored pencils widely used in animation and illustration for guidelines, initial sketches, and underpinning. I haven't tried the Rose Pink - I would guess that it's comparable, but I can't speak from experience with that one.

It should be noted, however, that these leads are not really designed for everyday writing and are not intended to be archival, so if you're looking or something that will be permanent under bright sunlight, this may not be your best option.

But, for a great many purposes, these leads are fantastic for those of us who prefer mechanical pencils to wooden ones for some tasks. These are are more erasable than the Pentel colored leads and come in more colors. They are on-par with the Sanford Col-Erase wooden colored pencils in terms of both erasability and feel, putting them far ahead of any other colored mechanical pencil leads I have tried to date.

This lead fades almost completely to invisible after several months. This and the other leads from this family also seem to start out soft, then dry out and become hard over time.

I tried these after many years with the Pentel red and blue leads (no green), which were hard and brittle. Unfortunately, this lead won't be of much use.

good lead, if you're wanting to use it for color coding. I would not use it for drawing, as the lead is very light. I used this on my sketchbook and had to go over the green a couple of times to make it look dark enough. I enjoy the orange, blue and red leads a lot more. Still a great functioning lead, just too light for my taste.

This one has more of a neon green shade. It is light on paper so certain lines need to be traced over twice. It stands out in the context of a dull page. I like it.

I use the red, blue, and green leads from this line to make color coordinated notes in school. These colored leads are best erasing leads I have found thus far, but if left in direct sunlight will fade very fast. These seem about as strong as the Pentel Ain leads available here, but those do not erase nearly as well.
My only complaint against the green is that I wish it wrote a little darker the first time around and would gladly accept a softer/faster wearing lead for it.
The blue has stayed strong and written dark - no complaints whatsoever.
The red writes dark enough, but the leads that were in my pencil seemed to get dry and brittle after a while (causing numerous pencil jams). However, the red leads that were left at home in my desk drawer did not get dry and brittle so this leads me to believe that the brittleness may be caused by heat from being left in the car.