An eraser for use in erasing markings on boards, such as chalk boards and white boards, is provided. The eraser comprises a form-fitted finger element made from a knitted or felted fabric. The finger element consists of a tubular member that defines a longitudinally extending finger passage. The tubular member has one open end and one closed end. The open end is sized such that the finger of the eraser user is insertable through the open end, so that at least a portion of the finger is received within the finger element passage.