The Aerojig Plain Twitching Jig Head Series utilizes customized Gamakatsu hooks made with 4X strong 4/0 wire. The added strength of these hooks will help you land that fish of a lifetime without the worry of hook failure.3 Per PackageSizes 1/2 oz, 3/8 ozFeaturesCustomized Gamakatsu Hooks with 1/0 Wire UV & Fluorescent Dyes & Pigments Powder Painted Heads With a Scent Free Finish Unpainted Eyes on Every Jig.WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov