Shrimp go Backwards, so Marker 54 Popping Cork shrimp go backwards. Shrimp sometimes also go forward, so the Popping Cork shrimp goes Forward. DUAL ACTION, Patent Pending, design has the exact motion of a shrimp but in Hard Plastic. A hard plastic flex tail moves identically as that of a live fleeing shrimp, the Hard Plastic body is perfectly weighted to mimic a live shrimp under a cork. The result is a lure that has the same motion and look of a live shrimp. This is not a lure - it's artificial live bait.