Do-it Shake-It Jig withScrew-Loc Mold - This Do-It Shake It Head Jig with Screw-Loc Mold's ultra-hard, warp-resistant aluminum alloy construction with machined faces and precision aligned hinges ensures a perfect mold every time. The Screw-Loc molds into the jig and provides great holding power. 6 Cavity Sizes 1/16 oz., 1/8 oz., 3/16 oz., 1/4 oz., 5/16 oz. and 3/8 oz Hook style Gamakatsu 604 1/0 thru 5/0 only or Mustad 32798BLM 3/0 thru 5/0 No Colllar