I bought these because of the price. This is a perfect example of "you get what you pay for" – the pencil writes fine but the entire reason I use pencils is so I can erase things too. The eraser is terrible. Every time I use the eraser it smudges the pencil marks and turns the area dark and cloudy. If I try writing over the erased area then it's hardly legible. I will NOT buy these again.
I love these pencils and the variety of barrel colors. They are comfortable to use. But I've since found out that Staples does not offer eraser refillis which is disappointing. So I must keep a separate eraser nearby or dispose of pencil when eraser is gone.