THE HAIR VENTILATING NEEDLE The hair ventilating needle (also known as a “knotting hook”)  is the #1 tool used by professional wigmakers to design beautiful wigs.  The two needles are great to have as part of your wig-making tools.  They perform the same function of adding individual strands of hair into mesh foundation or net, but can be easily used with different techniques. SIZE AND NEEDLE TYPE Each hair knotting needle will come  in a variety of sizes.  Asian needles will