Định Nghĩa và Ý Nghĩa của "erasing shield"

What is an "erasing shield"?

An erasing shield is a small, flat tool made of metal or plastic used to protect areas of paper from being accidentally erased. It allows artists to erase unwanted marks without affecting surrounding sections. The shield features cut-out shapes or openings that enable accurate erasing, helping to keep clean lines and details in drawings or sketches.