Chalk writing on the blackboard: Listen & Download Chalk writing on the blackboard .mp3 Error! Change your browser, please! ⇓ Download Apply tape to tape ⚠ Pen writing ⚠ Pad opens, Seal, closes ⚠ Put ballpoint pen on paper ⚠ Throw a ballpoint pen on the table ⚠ Pressing a button on a ballpoint pen ⚠ Eraser ⚠ Marker writing ⚠ Tear off tape ⚠ Manual pencil sharpener ⚠ Pencil writing on paper ⚠ Remove eraser by hand ⚠ ★★★★★