Environmental protection,not any poison,nontoxic ink.
Auto vanishing pen is best used by shoes industry,especially
use in sport shoes for temporary marking.
The trace will disappear spontaneously.
The product passed U.S. ASTM F963-03 TOXIC ELEMENTS TEST; and
EN71 PART 3 : 1994 AND AMENDMENT A1 : 2000 TEST .
Auto vanishing pen is the same with disappearing ink pen and
air erasable pen in some condition.
Use the auto vanishing pen in its available time.
Please use "the water" or "clearning pen" to get rid of the
trace,if the trace do not disappear on normal situation.
The disappear time is limited to the material,air wet
condition,temperature, and so on.