The Nils Master Balance Jiggers have a special design body shape and are made for ice fishing. You also can use them in angling from a boat or pier. They work well and are very effective fish catchers also in deep water. Twitch it with a slight jerk of the rod tip every now and then, and the Jigger darts forward like a live bait fish. The Nils Master Jigger actually search for the prey fish and then turns back to the starting point attracting a fish to strike. The Nils Master Jiggers have caught record pike, perch, pikeperch and zander.