Northland Tackle's Bionic Ice line is a do-it-all ice fishing line designed, engineered and tested by Northland. Virtually invisible underwater, it's perfect for bluegills, crappies, perch and walleye. It has the invisibility and higher density of fluorocarbon along with the knot strength and manageability of mono. This strong, dependable line has a co-polymer nylon core coating with an “invisible to fish” ultra-slick fluorocarbon coating to prevent freezing and ice build-up. Choose your lb test while you can get this unreal deal.