Leland's Lures Fin Spin Pro Series Underspin Jig - Unique Shad Dart head pushes the water to the small willow blade allowing this lure to spin at lower speeds than other underspins on the market. Hand Tied Body: Fitted with five layers of rubber, flashabou, tinsel, and thread. Versatile:: The Fin Spin Pro allows you to longline, spider rig, power troll, or cast it. Add a curly tail, a minnow, or just fish it by itself. Designed for crappie but works great for other species.