The spine of this tail comb designed the same width as perm rods. The wavy and thick spine of the comb enables an easy and strong grip. It contains high-grade super plastic used in the part of aircraft with excellent resistance to heat and chemical. The shortened tooth on the edge of the comb called Parting Space Head for easy sectioning. The gaps between the teeth are getting narrower called Gradual Narrowing Pitch for even tension. It was developed with ideas from salon work and has been supported by many professionals around the world.