function features
1.It will combine with dust, smoke, bacteria in the air and cause them to descend.
2.It cleans the air, kill viruses and prevent illness.
3.It make use of a special....

[ 1] environmental protection, not any poison
[ 2] Air erasable pen is best used by shoes industry, especially use in sport
shoes for temporary marking
[ 3] The writing will disappear....

[ 1] environmental protection, not any poison
[ 2] water erasable pen is used by fabric mark and shoes mark normal.At the
same time it can used by any material.
[ 3] It is not disappear....

[ 1] It is the improveing pen of air erasable pen.It is good for the normal
air erasable pen.
[ 2] environmental protection, not any poison
[ 3] disappearing ink pen is used by fabric....

[ 1] It is the improveing pen of air erasable pen.It is good for the normal
air erasable pen.
[ 2] environmental protection, not any poison
[ 3] silver refill pen is used by leather....