Isomars Erasing Shield A simple metal plate with different sizes and shapes of openings Allow precise masking of small areas to erase without smearing Prevents accidental erasure of surrounding areas of a drawing Categories: Drafting, Drafting Accessories Share This Email Products in this RangeSME23Isomars Erasing Shield Explore more products Read more Isomars Radius Template Read more Isomars Engineering Clear Broad Ruler Read more Isomars Drawing Tables A1 – Scholar Read more Isomars Drawing Boards – Plain Read more Isomars Ellipse Template 20/30/40/50 Degree