Spiderwire Ultracast Ultimate Mono Fishing Line is the ultimate strength-to-diameter, co-polymer mono, with low stretch for ultimate sensitivity. Ideal for baitcast reels, Ultracast Ultimate Mono has a web-thin diameter for higher line capacity. Lb. tests: 4, 6, 8, 10, 12, 14, 17, 20. Length: 330 yds. Color: Clear. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Line.