Nylon-coated, miniature, 49-strand stainless steel wire is extremely flexible and kink-resistant. Conventional knots (clinch, uni-knot, nail, etc.) can be used to make all necessary attachments. Great for use when fishing for toothy fish. Low stretch and high sensitivity allow quick hooksets. 5m spools. Colors: Bright, Camo. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Leader Materials.