I teach Chemistry. These lead refills are really good quality. I have never
received one broken, and they only break on me when I have too much lead out
(3-4 clicks) and press too hard. The colors shown on the website are
surprisingly clear and accurate.
Not one of my favorite colors of the Pilot Color Eno... It feels really
plasticy/waxy, and the color is very faded and light. It just doesn't stand up
to their other colors like the Pink or Soft Blue. Would not recommend to sketch
artists as an under sketch. It doesn't photograph well.
I always come back to buy this lead. It has a nice soft green tone and erases
easily (as long as you don't press too hard) and fades over time. So if you want
to use it for a rough sketch before inking, this should suffice. There are other
colors available if green isn't your preferred color to sketch with.