Flat Mylar reinforced with two crossed nylon threads for added strength. In addition to the classic solid colors, we have created vibrant shades by mixing two or more colors together, also adding ultraviolet and rainbow fibers, to obtain new and effective combinations. Ideal for all streamers, this material is very soft and enhances the movement of the streamers when used in a loop. To increase its volume, it is recommended to combine it with stiffer materials for easier execution. The individual fibers can also be used for ribbing on small fly bodies. - 0,37 mm fibers width (1/69'' inches) - Pack of 300 strands