Fuji’s Ultra Poly rod wrapping thread is a specialized polyester that accepts rod finish beautifully. It resists UV rays, aging and is more abrasion resistant than nylon thread. FujiUltra Poly rod wrapping thread is available in a rainbow of colors and popular sizes making it of interest to custom rod builders. All of the Ultra Poly rod wrapping threads including the NOCP and metallic threads are made on a special polyester core.