Staedtler 526 50 Eraser- Buy 5 for 99p each
One, if not the best pencil eraser available.
Soft and firm, with minimal crumbling it erases with little wear and no discolouration of the eraser on paper.
Comes in a protective cellophane wrapper with tear-and-open strip opening and cardboard sliding sleeve for convenient handling
Phthalate and latex free