I bought these for my wife, who complains about the 0.7mm leads breaking. I thought perhaps the 0.9mm leads might prove more durable. I took the second one to try myself, as I use a pencil for scribbling and drawing. I was suspicious of the white eraser but the package claimed it would erase without smudging and it does a far better job than I expected. I think my wife is actually using hers instead of the pencil sharpener.
Rating:
[5 of 5 Stars!]