A erasable refill that can be wiped clean, this erasable refill is Crystal Blue respectively, and black and gray. Wear-resistant and drop-resistant, with special ink, the handwriting can be erased and disappeared without trace. Special ink black and gray writing effect will be lighter than ordinary color. Erasable refill is a temperature control design, which can be erased by the end of the pen after writing, or it can be heated by lighter, and the writing can disappear!