Are you an artist? A graphic designer? A student? A person who sometimes uses a pencil? Well, then these erasers are for you. They are perfect for use with any erasable medium. Nice and malleable, they adapt to your requirements; shape the eraser into a tiny point to clean up details, or use the whole thing to gently blot up dusty sections. If you get the extra large ones (my favorite) you can rip them into bits the size that you need, and still have some fresh eraser left for another day. Play around with them a bit, and you will agree that these are pretty much the best erasers ever.