This eraser is made of a special soft material that erases dark graphite lines cleanly and easily. I love it so much on both paper and fabric. The sleek holder is made of durable aluminum that lets you get a solid grip while erasing. It feels great to use.
The design is based on the Blackwing eraser clip found in Blackwing pencils which allows you to move the eraser down the holder as it gets smaller from use.
Replacement Erasers are available in sets of 3.