u/Ivaine_Longfield_84

https://preview.redd.it/hdoifuws6jkh1.png?width=315&format=png&auto=webp&s=17b725a4625de6e66c18dedd48ce44610c41fbde

I recently saw my son's friend using an eraser that looks like this. Afterwards, I started wondering: why on earth is this eraser black? Does it have some kind of specific use? Is it better suited for a certain type of paper? Or is it just a visual gimmick to appeal to kids?

Thanks!