Do-It Gamakatsu Round Jig Lead Mold - Do-It went and took the most popular jig head design known to man and fit it around one of the sharpest and strongest hooks man can build. By special request, they stepped up the hook size for the cavity weight so you can have all the lip-gripping power you will need. We also added a special double holder style collar designed to better hold the new softer plastics Hook Style 570-575 Hooks sizes: 1/32 oz. - 2 1/16 oz. - 1 1/8 oz. - 1/0 1/4 oz. - 2/0 3/8 oz. - 3/0 1/2 oz. - 4/0 5/8 oz. - 4/0