PRUNUS 12 pcs Archery Targeting Fiberglass Arrows Changeable Field Points Replaceable Nocks Recurve Compound Bow Hunting Prunus 12 pcs Packing Targeting Fiberglass Arrows PACT16052204 These arrows measure 30.5 inches from the end of the shaft to the throat of the nock. Total length is 31.5 inch Replaceable arrowheads with stand thread The nocks are tight enough and not glued, you could use it directly for compound bows, and just need turn the nock direction in big strength for recurve bow Suitable for draw weight of 18-60 pounds bows