Gary Yamamoto Senko 4” Worm if there's been one lure that has changed the face of fishing over the years, it's the Yamamoto Senko. With its wide range of uses and subtle natural action, the Yamamoto Senko has quickly become a favorite with anglers all over the world. The beauty of the Senko is in it's simplicity. The Yamamoto Senko may just look like a thick round plastic worm but the fall rate created from the large amount of salt impregnated in the body drives fish mad. When rigged weightless the Yamamoto Senko falls horizontally with a seductive side to side tail action. Try wacky rigging or Texas rigs the Yamamoto Senko and experience the versatility and effectiveness it provides.