The PowerTeam Lures 4.5" Grub features a forward ribbed body design. This is done to ensure the bait is displacing the maximum amount of water possible with every crank of your reel handle. The tail was specifically designed with a staggered offset pattern which adds more weight to the tail. By doing so, this adds an extra "thump" which allows the fish to feel it on their lateral lines way before they even see it. 10pk