a）invisible-double-sided-tape is made by an automatic machine and can be make a large quantity.    

b）The product is truly 100% invisible.  There are not any visible parts in wearing time,   it can even be worn on the top，hair parting and crown of the head.    

c）The customers can hardly feel its existence, when customer wears it on thir head,  but increment of long hair effect comes out.    

d）The double side tape is made to never separate from skin. After 3 months, the customer can easily remove the tape, this way, the glue from the double side tape will never be left  in the customers'  hair.    

e）The product is soft and ultra-thin, its thickness ( include hair, skin and double side tape glue, but not release paper ) is not exceeding  0.68mm.    

f）The hair density of the product is 2 times more than hand tie skin weft, therefore  it is more natural looking.  Also, it can be controlled according to the customer requirements.    

g）The product is very lifelike, It can hardly be seen that it is tape with hair extensions. The extensions are perfectly combined with customers' own hair to make it just look like their own natural hair.    

h）The product never sheds hair and cross or skew, the hair direction and the skin tape angle are nearly at a right angle.