Faber-Castell dust-free eraser series for lead and colour pencils cause less dust and do not contain harmful phthalate plasticizer. Phthalates have been reported to cause several undesirable effects when exposed to the human body. To date, phthalates are still commonly used to produce erasers around the world. The balanced plastic mixture guarantees soft and smear-free erasing. With minimum waste Waste rolls up and sticks together Clean and smudge-free erasing