6 different sized needles for our tool.
PLEASE NOTE: these are fine needles and not designed to be used on dolls with harder vinyl heads unless you are using a heat pad , hot water or a hairdryer to awarm up the vinyl.

In addition to this information please be careful how much hair you are trying to push into the holes. 
If it is too much the needles will break and you may split your dolls head.

Here is an excellent You Tube video showing how to use the tool from Kata at Unidolls

https://www.youtube.com/watch?v=Rk7y2oVfTek