1.Length:35cm, Diameter 0.6mm 2.2 colors: black,white 3.New plastic head diameter 0.6mm flexible silicone eyeglass cord 1.Length:35cm, Diameter 0.6mm2.2 colors: black,white3.New plastic head diameter 0.6mm flexible silicone eyeglass cord New plastic head diameter 0.6mm flexible silicone eyeglass cord