Do It Mold Round Head Jig Sz: 1/32, 1/16, 1/8, 1/4, 3/8, 1/2, 5/8 oz Collar: Double Holder By special request, we stepped up the hook size for the cavity weight so you can have all the lip-gripping power you will need Do it Mold (3388) GRC-7-A We also added a special double holder style collar designed to better hold the new softer plastics. Will also accept Eagle Claw 570-575 hooks in the following 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 and 5/8 oz. - 4/0. Hook Eagle Claw 570-575 Sizes #1-4/0 (not included on this package but we do carry) Do It Mold Round Head Jig Sz: 1/32, 1/16, 1/8, 1/4, 3/8, 1/2, 5/8 oz Collar: Double Holder We 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, we 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. Will also accept Eagle Claw 570-575 hooks in the following 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 and 5/8 oz. - 4/0.