Whitey says: The Halco Lockweld Wire system is designed for maximum strength and minimal rigging time. It features 7 strand stainless steel wire with a black nylon coating to seal out water and improve the lifespan of your wire. This wire is perfect as its able to be used without crimps or the need for crimping pliers. Simply attach you swivel, hook or lure and heat weld the join (a simple lighter works perfect). Available in 10m spools in a variety of sizes.