Delivery scheduled between 10 and 20 January, I finally received this today 15! I procrastinate somewhat about 6 other opinions. If, indeed, I also praise the fact that its shape pencil, eraser heads this double stows easily in a standard school kit, I am, by cons, not quite as satisfied with their quality scrub ! I use a lot of color pencils, including watercolor. I am forced to note that it remains the same track where I want to erase is a simple overflow to 1 shot baggy coloring !!! Even using the pink side. Ditto for grease pencils. Perhaps is it better with standard colored pencils? I have not tried ... By cons, no complaints on the pencil; still happy are you going to tell me ... Note, also, that the gum, whatever its color, crumbs and loses the tip takes the color that we just erase! Nevertheless, I appreciate, in addition to its fine pencil ... (lol), good precision: we manage to erase flush with his drawing. Indeed, they do not damage the paper. NB tested in art therapy books and on a basic notepad post-it white type. I still recommend this product, once it is known what be expected: it is actually quite effective. To me to make less pencil stroke overflow! ;-)