The Pentel Hi Polymer Eraser is a high-quality, large, white block eraser specially designed to lift lead markings off paper with very light pressure. We especially like this eraser when you're using it to remove pencil marks around ink since it doesn't lighten the ink as much as other erasers. Erases cleanly without scratching or tearing paper surface, and leaves no dust! This non-abrasive block eraser will not crack or harden with age, and remains soft and ready to use. The Pentel Hi Polymer Eraser comes with protective sleeve to keep you and the eraser clean.