The Ecogear VX45 Blade series metal vibration lures all have two split ring positions that affect the way the lure vibrates and swims on retrieve. The front position gives the best vibration on flat retrieves, and is great for when casting out far and searching for fish over large areas. The rear position gives the lure a strong vibration when retrieving on the vertical and targeting deeper fish.
The extra weight in the new larger 45mm VX lures make them great for vertical jigging. Big enough to hold their own against larger fish, the extra weight also stops them from being pulled around by tidal currents getting you into your target range faster and easier.