The ice jig head that swings the jig to the side makes ice fishing efficient. The movement of the Pro model is superior for fishing perch, whiting, walleye and rainbow trout when a jig is used as bait. The barb on the hook shank holds the jig firmly in place. Different color hooks can be changed to the quick release below. A fishing jig head also works in the summer for boat fishing. The jig heads are made of zinc, which means they are completely lead-free.