As many paper lovers know, Japanese ruled paper have a variety of different line widths. A study conducted in Japan showed users experienced frustration when trying to erase a single line of text in notes. This eraser has different sized edges aimed at erasing a single line from your notes. It has five widths: a point, 3 mm, 4 mm, 5 mm and 6 mm edge arranged in a five-point prism. Each edge has the number imprinted throughout the core, so even as you erase the number will still appear.
Nice little tool, especially for pencil artist. The point on this gets up close
and with a little flick the errant line is removed and on one goes with their
work. I really like this tool. Ought to fit well into all but the thinnest
little pencil case.