Absolutely top notch of the line leads. I use them for drawing in my Pentel
Graph 1000, it's very smooth, doesn't scratch the paper, and gives me consistent
lines with every stroke. The lead is solid and doesn't break easily. The casing
is very sleek and stylish, sturdy slide closure, but also very easy to get leads
out. These are the best leads I've used so far, and I'm definitely going to
stock up on the whole line in the future!