"A favorite among trout, kokanee, and salmon anglers, the Mack's Lure Hum Dinger Spoon is shaped and contoured in such a way that it emits a constant ""hum"" as it's worked underwater. There's no denying its attractiveness to fish, as the strikes are usually aggressive! Fitted with premium hardware. Great for trout, kokanee, and salmon Unique shape and contour Emits a constant ""hum"" as it's worked Fitted with premium hardware"