The quality of an eraser and using the correct eraser are crucial for optimum results | Basically, two different materials are used to make erasers: rubber and plastic | All rubber erasers and the majority of the plastic erasers made by Faber-Castell are PVC-free | Faber-Castell PVC-Free erasers do not contain harmful phthalate plasticizer | Phthalates have been reported to cause several undesirable effects when exposed to the human body | The balanced plastic mixture guarantees soft and smear-free erasing | PVC-free | Phthalate-free | With paper sleeve and cellophane wrapping with tear tape