Faber-castell Dust-free Eraser series provides the best cleaning and erasure performance. It also does not contain harmful plasticizers called phthalates. The unique "dust-free" formula makes the eraser soft and guarantees good cleaning and stain free erasure. Scrubs and dust tend to roll together and are easier to clean up. Comfortable edge (chamfer) carefully crafted for precise erasure and breakage prevention. In addition, the eraser is latex free and skin tested & 批准.