Uni-ball Hi-Uni Hi-Density Pencil Lead - 0.5 mm - 2H

Probably the best 0.3mm lead I have ever used. This stuff lasts almost like 0.5 and still writes very smoothly. This is the only lead that actually works well in my kuru toga 0.3mm as most others wear away too fast for the engine to keep up. A+

This is the best kind of lead ever!!!!!!! my friend gave me a pack last last summer, and this quickly became on e of my favourite of lead... i use it at school with my pilot airblanc... perfect match!!!!!

I really like this lead! I didn't think that it would last this long. I have shaky hands, so I normally stray away from pencils this size because I break the lead so easily. But I got this lead in June, and even though it takes a lot of getting used to, it is a godsend! Why can't American lead be this durable! They should bring Uni-Mitsubishi stateside! 10 out of 5!

My FAVORITE mechanical pencil lead! I bought some of these refill leads at a Japanese bookstore once, and they quickly became my favorite. I just saw the JetPens newsletter and I'm SO glad JetPens now stocks them!

I usually replace the leads that come with my mechanical pencils with these superior Hi-Density leads by Mitsubishi. These HB leads to write very smoothly...I do a lot of drawings on recycled sketch pads, and other HB leads have a tendency to "scratch" and tear the paper. And another plus is that they are less prone to breaking. I highly recommend trying these if you want a excellent quality everyday-use lead! The best 0.3 leads available!

Top lead in 4B (compares to 5 or 6B on other brands) and yes, at 4B it supposed to smudge as anything above B grade is really designed for drawing where smudging is desired in some techniques. For writing in general people should not use anything above B grade.

It appears to me that this maybe the same lead used in famous Hi Uni Mitsubishi pencils.