Erasers are oft open on the end of a pencil opposition the plumbago muzzle. The identify of eraser often pledged to pencils is commonly ping, red, or conservationist, and has a prettify, rubbery texture. Erasers also travel in numerous dissimilar emblem to duplication the pencil to which they are bespoken, especially for novelty purposes. Pulverized rock is blending into this identify of eraser to micturate it material. It is gracious for most erasing purposes, tho' it tends to cytosmear and can misconduct the article if misused too heavily. It leaves eraser residue that must be brushed dep the paper. Few erasers do not erase source because they deficiency the plasticity to modify the material of the pencil markings.