Writing materials （ friction ） disappear now available!
[Features] -Rub the inks become transparent. -No Caspar, also rubbed off. -Write and matte can bunch. -Please do not leave in place at 60 ° c or more. The ink becomes colorless. Return to writing was clear and be around-10 ° c. -Depending on the type of paper, thermal paper, suitable for deletion. • Do not leave in direct sunlight.