Pro-Troll Fishing Products SF15-421 Stingfish Lure with Echip, Super UV Body with UV Sparkle On Top Stimulates predatory instincts in game fish Embedded EChip has proven itself as one of the most effective river salmon lures on the market; it has also been widely used by slow trolling fishermen for lake trout Increases the number of strikes and fish caught Size 15 lure is 5.5" long; 26 finishes