Crafted from plastics, these 0.5mm erasable pen refills deliver smootly inks flowing and erase cleanly with the included erase The 13cm long pen refills and 4.7x2.4cm eraser is portable for writing, combining functionbility and practicality for organized note or artistic project Widely used for classroom,, or creative studios, these colorful erasable pen refills work flawlessly erasable gel pen to edit notes, highlight document, or draft colorful diagrams without leaving residues Suitable for students, teacher, workers, artists, and professional who seeks reliability, these erasable pen refills adapt to detailed note taking, journaling, color coding, underlining, highlighting, writing, creative sketches, or daily documentation tasks seamlessly writing with these erasable pen refills suit for erasable gel inks pen, featuring various color like blue, black, redness, green, purpler, and tangerines for versatile use