黒こく板ばん拭ふき

noun

blackboard eraser; chalkboard eraser

A cloth or felt eraser used to wipe chalk from a blackboard. Common in school settings.

• 授じゅ業ぎょうの後あと、黒こく板ばん拭ふきで黒こく板ばんをきれいにした。

  After class, I cleaned the blackboard with the blackboard eraser.