Z-man Chatterbait Jackhammer 1/2oz California Craw. S. market. Its flat-bottom low center of gravity head and super thin strong stainless steel blade enable the Jack Hammer to start vibrating quickly and hunt in an erratic side-to-side motion just like a frantic baitfish. Its signature head and blade combo allow it to deflect off cover very easily as well and also allows it to skip easily beneath docks and overhanging trees like no bladed jig before. Specifications for Z-man ChatterBait Jack Hammer: Manufacturer: Z-man Additional Features: No Package Contents: Z-man ChatterBait Jack Hammer