From Big Hammer:
Big Hammer Swimbaits have the best action of any swimbait on the market. The original Big Hammer Square Tail™ combined with hydrodynamic body designs create an unparalleled vibrant swimming action - even at very slow retrieve speeds. Using the finest quality plastic available creates a bait that is not only beautifully crisp and clear but also extremely durable. Freshwater or saltwater - tie one on and see for yourself how "Nothing kicks like the tail of a Big Hammer".