Aneraserisanarticleofstationerythatisusedforremovingpencilmarkings.Erasershavearubberyconsistencyandareoftenpinkorwhite.Somepencilshaveaneraserononeend.Typicalerasersaremadefromsyntheticrubber,butmoreexpensiveorspecializederasersarevinyl,plastic,orgum-likematerials.Cheapereraserscanbemadeoutofsyntheticsoy-basedgum.

--http://en.wikipedia.org/wiki/Eraser

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