You may find yourself playing with this one more than actually using it to erase. That’s because it’s soft, flexible, and can be easily formed and sculpted into various shapes.
Kneadable erasers work by lifting pigment (graphite and charcoal) off the surface. Because of this, paper is left undamaged with no smears. The flexibility of this eraser is popular among artists because it can be formed to a point for detailed areas – or whatever other shape is needed.
To clean, simply stretch the eraser and fold over on itself (also known as kneading). If you’re working with charcoal, a kneaded eraser is a must!