YGK 100% Fluorocarbon Leader Line 100m Size 5 16lb 0.37mm (5617)High strength braided assist line with a 240lb breaking strain. 20 meter spool in #50 size (0. 80mm diameter). Smooth, low stretch Dyneema core with a durable outer jacket for abrasion resistance. Designed for heavy duty game fishing rigs, including bottom fishing and deep water jigging setups. Color coded for easy identification in low light conditions. TARGET USE: Heavy duty game fishing rigs, bottom fishing, deep water jigging