What is doll's hair made of?

Very long thin pieces of plastic

It can be made out of Nylon but sometimes each doll is made of something different that's why you can't be sure about Nylon it can't be always made out of Nylon.hope you thought my answer was...

One type is chemically identical to SARAN. but it is shot through a sort of nozzle machine and can be spun or woven. Saran is a type of plastic- used for plastic bags of all sorts.

That depends on the type of wig, but generally synthetic fibers.

The doll's hair is made out of a very fine, soft wax.