My criteria for buying erasers: fairly soft and white. The harder the eraser is the more prone it is to destroying your paper or making smudges. The disadvanta

My criteria for buying erasers: fairly soft and white. The harder the eraser is the more prone it is to destroying your paper or making smudges. The disadvantage of a soft eraser is that it wears more quickly. I don't buy expensive enough erasers to where that's a problem. Most pink erasers are fine, but I've had more than once instance of them working more like a crayon than an eraser. Recently I got recommended trying an edding R20 eraser. It's a weird one. It's much more plastic-y than the average eraser. It's quite firm too, but still manages to not smudge and keep itself clean. Haven't used it enough to form a proper opinion yet however.