Regal Medallion Replacement Heads/JawsShank Head Holds shanks for articulated patterns, tube pins, and hooks from size 16 to 1 0. the left side of the head features two hook grooves, the right side has a horizontal pin groove, and the jaw is blunted perfectly for holding shanks. Monster Head Holds Hook Sizes #1 0 8 0 Midge Head Holds Hook Sizes#32 6 Regular Head Holds Hook Sizes#22 1 0 Stainless Steel Head Holds Hook Sizes #32 2 Big Game Head Holds Hook Sizes #22 5 0 Hook Head Holds Hook