Pro-Troll Fishing Products Big Fin E-Rotary Salmon Killer for Bait Fish Firmly holds frozen or fresh baitfish, with no toothpicks, rubber bands, or wires required Embedded EChip bait technology duplicates the electrical nerve discharge of live bait, which triggers strikes by nearby predators A diagonal fin gives the trolled bait the perfect rolling "wounded fish" action Available in many colors and comes rigged with top grade stainless 5/0 hook, 7 foot 40 lb. leader and 75 lb. test bead chain swivel