The all new Berkley PowerBait 5" Heavy Weight FAT Sinkworm has an ideal sinking action. It has even more mass and weight than the 5" Heavy Weight Sinkworm. These worms wiggle like crazy as they fall. Due to their heavy weight, no sinkers are required. Perfect for catching suspended fish. Best when utilized in a "dead stick" technique. Rig the baits "wacky" style or "Texas" style and allow the bait to free fall. Ps- Don't forget to hang on tight when you do so. Big fish have a tendency to rip rods & reels out of the hands of anglers when these baits get bit.