IC ESTO Eraser is a general purpose eraser that does not produce crumbs. The square shape makes it ideal for erasing in tight corners.
IC Tone Eraser is made from bits of sand embedded in a rubber eraser. The sand will scrub down and lighten areas of tone. The more you rub, the lighter the area will get.
IZ Cleaner (pronounced "EZ" in Japanese) is a soft kneaded eraser that cleans as it erases and doesn't leave crumbs or fibers.
Sensor Kneaded Rubber Eraser comes in a plastic case. It’s soft texture eliminates eraser crumbs, keeps surfaces clean and doesn’t damage paper fibers. Use it to create gradients by lightly removing graphite.