Plusmate Hi-Touch Plastic Eraser 4 Pcs

I'm a chemical engineering student, and I'm constantly on the hunt for the "perfect" pencil or the "perfect" eraser. This eraser is pretty close! It is a Japanese import [these tend to be excellent, as are German erasers] and it even erased super-black pencil marks… all the way down the spectrum to "an almost imperceptible mark." Every iota of pencil mark was GONE!The erasers themselves were soft and pliable, the package I received contained four units, sized 2" by almost 1" and 1/4" thick. There is a typical amount of eraser "shavings" remaining after erasing the error, but they stick together and are very easy to blow or whisk away with your hand, leaving no mess behind at all.I'm very happy with these erasers. They do their job and do it well. Alas, the colors are pink and blue. I'm sure the color choices will offend someone. Nevertheless, they're GREAT erasers.