Krest Pintail Combs, feature extra-long pins that eliminate foil "bunching" caused by shorter pins. Allows full fold to reach scalp for complete separation. The stainless steel pins resist corrosion from chemicals. The comb part is constructed of Nitrile rubber which offers superior strength and flexibility and is a much better alternative to cheap plastic. Two different teeth styles for maximum performance in fine or thick hair. Also great for weaving. 100% Professional quality for combining proper rigidity and flexibility. This are the same rattail hair combs used by professionals in the US. and all over the world. It can be wet or dry sterilized with perfectly matched teeth to eliminate drag, splash or scratch.