The Yo-Zuri Mag Darter Lure is designed with specific features to land huge game fish. The Magnet Weight Transfer System is great for the cast and the retrieve. When you cast these lures the magnet and weighted balls shift to the rear of the lure allowing for proper weight distribution so that you achieve maximum casting distance. On the retrieve the balls are locked into the belly of the lure, via the magnetic attraction, and this provides a balanced, irresistible, wiggling action that mimics an injured baitfish. The Yo-Zuri Mag Darter Lure is extremely realistic, lipless, shallow diving lure which darts from left to right like an injured baitfish, triggering explosive strikes.