Basically large examination (examination, college examination etc.) standard with remarked: " choice and correction, please use the plastic Eraser".Generally ,this is because these exams choice made by the computer to correct exam papers, and the judgment is to determine the carbon content on the distinguish between knowledge (which is also specified use 2B pencils). And modified, be sure to make the original selection area (near or even other choice area) of carbon is clean, in comparison, plastic Eraser can effectively deal with this situation (which is why some drawing Eraser is made of TPR  plastic material ).

Office Eraser   Creative Eraser  3D Eraser  Eco-friendly Eraser