"G" means glass fiber (glass fiber), "10" should mean that glass fiber contains 10%. G10 material has the characteristics of insulation, corrosion resistance and wear resistance. It can be used as a tool handle. G10 is a composite material made of fiberglass cloth and epoxy resin. It was originally developed as the material of aircraft. It can withstand tremendous strength without destroying deformation. G-10 will not be permeated by water, gas and liquid. It has the characteristics of insulation, acid and alkali resistance and weightlessness. G-10 is harder and more expensive than ZYTEL. Generally, it has black, red, blue, green and other colors. Some G-10 have two levels of color at the same time. The texture and performance of G-10 are better than ZYTEL.