| 摘要 |
PURPOSE: Provided is an eraser for a white board which enables a compression sponge to absorb cleaner liquid and prevents cleaner liquid from being coated on the white board directly so that it contributes to save cleaner liquid. CONSTITUTION: In the eraser for the white board which consists of an injection stopper(1), a second storage vessel for cleaner liquid(5), the compression sponge(3), a first storage vessel for cleaner liquid(2) and a common sponge(4), the eraser for the white board is operated by the steps of: (i) pressing the compression sponge to supply air of the second storage vessel to the first storage vessel; and (ii) releasing the compression sponge to supply air and cleaner liquid to the second storage vessel and enabling the compression sponge to absorb cleaner liquid and transfer the absorbed cleaner liquid to the common sponge.
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