Carbon bolts have a straightness tolerance of 1 .003 and a weight tolerance of 1 2 grains. They weigh 7.3 gpi with an O.D. of .337 and I.D. of .300. Point size 11/32. Nocks and 110 Grain Brass inserts included. 6 Crossbow Bolts with 3 - 4 Vanes per pack. Mfg Item Number: 22023 Please Note: Nocks and inserts are not installed by mfg. Fletch colors are random combinations chosen by the mfg.