Sufix Invisiline® Ice Fluorocarbon is a 100% fluorocarbon line for ice fishing. Abrasion-resistant and sensitive, this line will sink four times faster than monofilament. With ultra-low visibility, it has superior strength and handling. Its low stretch properties make it optimal for hook setting power. The hydrophobic treatment used on Sufix Invisiline® Ice Fluorocarbon makes this line water-repellent. Material: 100% fluorocarbon Hydrophobic treatment for water-repellency Superior strength and handling Ultra-low visibility, low stretch, sinking