The Strike King Internal Swimbait Jighead adds realism for your swimming lure. The internal design reduces head profile and sets the hook further back on your swimming bait. The Strike King Internal Swimbait Jighead takes your ultra-realistic swimming action to places few lures ever go. Per 2. Sizes: 1/2 oz., 3/4 oz., 1 oz. Color: (013)Unpainted. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Jigheads.