Similarly one may ask, what color is a pencil eraser?
pink
Subsequently, question is, why are erasers pink? The magic ingredient in the Pink Pearl is volcanic ash from Italy. When mixed with rubber, it is the pumice in the ash that gives the eraser its unique smell.
Beside this, why are erasers pink and blue?
The blue end is meant for erasing pencil marks on heavy grades of paper or dark marks. The soft end (pink/orange) is useful for light grades of paper which the hard gritted side would tear apart, and also for precision erasing, such as removing a light stray mark from among dark marks.
What is a black eraser?
SAVE up to 22% off List! Like the original Factis eraser, General's Factis Magic Black Eraser is super-soft and easy to use. The difference is that it's colored black and ideal for erasing charcoal, graphite, colored pencil, and for use on black or toned papers.
