20 Inch Carbon Crossbow Arrow Bolt Fletched 4 Inch Vane with Field Point Pack of 6/12/24 20 Inch Carbon Crossbow Arrow Bolt with strong, lightweight carbon shafts; improved wall thickness for added durability 13.78 grains per inch, crossbolt matched with 125-grain Broadhead; optimal accuracy and target Bolts come with standard 4" vanes(2 orange 1green), inserted moon nocks Removable Tips to attach broadheads Usage : for archery crossbow hunting or practice