Environmental protection,not any poison,nontoxic ink.
Air erasable pen is best used by wedding yarn ,brocade and
pure cotton normal.At the same time it can used by any material.
The trace will disappear spontaneously,the disappear time see
the "SKY ANGEL PRODUCT SPECIFITION" please. The product passed
U.S. ASTM F963-03 TOXIC ELEMENTS TEST; and EN71 PART 3 : 1994 AND
AMENDMENT A1 : 2000 TEST .
Air erasable pen is the same with disappearing ink pen and
auto vanishing pen in some condition.
Use the air erasable 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.