This is a swimbait that I designed after losing too many expensive lures. This jointed lure swims with life like action and works great. By changing the volume of air trapped in the lure via the infill setting, you can customize the action on the lure to be floating (15%), slow sinking (25%) or fast sinking (>25%). It uses some hardware that can be easily found on amazon. There are two spots to add lead balls or weights which allow the lure to sink upright like a real fish would.