LYRA-Knetgummi Kneadable Eraser. Perfect for use with charcoal; chalks and pastels. Completely erase portions; dim other areas; and simply knead the residue away. Can be easily shaped to erase large areas to minute details; or you can roll over your work to just dim or for a blurred effect. This package contains twenty 1-1/4x1-1/4x3/8in kneadable erasers; each in their own reusable plastic storage container. Imported.