When you just want an ugly grunge brush for your warm up doodles...
As you can see, these pencils are all really textured and look weird. They're great for warm up sketches as you can look at the brush and say "Yeah, these warm up sketches are going to be bad and that's ok."
Quick doodles:

Top to Bottom:
UGLY CARPET - The texture is an ugly rug. This is on the easier side to use.
UP N DOWN - This pencil is very textured, but feels the most like a normal pencil. It just has a lot of variance in when it shows up on the paper.
EXTREMELY CRUNCHY PENCIL - When you want a bold pencil, pick the crunchy pencil. Great for grungy looks and fills.
CONCRETE OIL PENCIL - Smooth and dark, good for grungy line art and writing effects.
EXTREMELY FUZZY PENCIL - Hardest to use due to to how much variance there is in what comes out based on size. Still great for filling things and adding noise & texture.
Mark test:

1. Ugly Carpet
2. Up & Down
3. Extremely Crunchy
4. Concrete Oil
5. Extremely Fuzzy
Thanks for reading, hope you have fun with these :D
ugly = punk!