The Basics A complete set of 9 needles from Makeup-FX for pushing hair into a foam, latex or silicone mask. The Benefits We have five different sizes of needle to work for any project.  The Specs • Size 19: Very heavy for hidden areas (x 1)• Size 36: Normal for human hair (x 2)• Size 38: Fine for thin human hair (x 2)• Size 40: Very fine for mohair or wool (x 2)• Size 43: Ultra fine for the finest fiber (x 2)