"Thanks to its pair of smooth-rolling pulleys, the TACO Marine Shock Cord with Double Pulley Block can handle 2 halyard lines. Not only does it provide necessary tension to your outrigger poles, it also delivers the kind of smooth-rolling, friction-free line movement needed to successfully deploy your baits. The corrosion-resistant clasp secures connections with ease. The stretching bungee cord with durable shrink-wrapped ends is 12"" long, and the entire length of this essential saltwater fishing accessory is 17"". Mfrs. 1-year limited warranty. Provides tension for 2 halyard lines Friction-free line movement 2 roller-eye pulley systems Stretching bungee cord with shrink-wrapped ends Corrosion-resistant clasp"