hurikusyonbo-rusurimu all 20 colors in an original set comes in a transparent pencil case. Retractable Ultra Fine Point Writing suitable for Frixion Ball. Fine Letters and Writing. Erase Scuff, rubber and the ink color in the colorless will change can erase the handwriting on the go. [Features] · Erase Handwriting, equipped with a Erasable rikusyoninki. Change Rubber and rubbing the ink color of the colorless, ultra fine ball diameter 0.38 mm and equipped with a convenient retractable ball point pen. Slim body and increases storage/convenience. To help to slide easy to knock the smaller knobs. · Also perfect for "Fine Write and Wipe, so not for notebook or learning.