This line is made in America for the last 75 years. Holds several world records for tensile strength, abrasion resistance, and knot strength. McCoy's proprietary copolymer line is unlike any monofilament line on the market, it is specifically designed to be stronger, more reliable, and far less prone to fraying. Available in 250 yard filler spools as well as bulk reel and several color options such as xtra clear, clear blue fluorescent, mean green. With Co-Polymer Line You have better sensitivity as well minimal stretch, ensuring you have better hook sets. Less spool memory resulting in longer casts.