The Gillette Co, 1982
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The Gillette Co, 1982
A disposable version called Erasermate 2 was subsequently introduced, with an appearance similar to the non-erasable Write Bros. stick pen, except for a slightly larger girth, and of course the black eraser, affixed to the pen's cap. The eraser, not unlike that of a standard no. 2 pencil, was about 5 mm in diameter, and 10 mm in length. The eraser was held in place by the force exerted by the cylindrical abscess of the pen cap. The eraser could be removed, but replacing it required more effort.
On the Wikipedia page for Erasermate.
My teacher bought the class erasermates for our exams,
God bless her