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For graphite on paper and matte drafting film
Blue part of eraser for drawing ink on paper and matte drafting film
Practucally residue free erasing
Easy to remove eraser waste thanks to minimal crumbling
Combination eraser is one third soft white vinyl for use with graphite and two thirds of blue solvent-loaded vinyl for use on ink.
Mars 526-508 Plastic Combi Eraser - B001IVTLFK