[1]Environmental protection,not any poison,nontoxic ink.[2]Water erasable pen is used by fabric mark and shoes mark normal.At thesame time it can used by any material.[3]It is not disappear automatism for the trace.But it will disappearat once ,after the trace touch the water.[4]The product passed U.S. ASTM F963-03 TOXIC ELEMENTS TEST;and EN71 PART 3 : 1994 AND AMENDMENT A1 : 2000 TEST .
