Best-selling 31" Carbon Targeting Practice Arrows Fletched with 2" Blazer Vanes Replaceable Screw-in Field Points for Recurve Traditional Bow Outer diameter: 7.6mm. Arrow Shaft Length: 31inch. For draw weight of up to 50 pounds bows Arrow Vane: Fletching with 2 Blue 1 White 2'' blazer vanes plastic feathers Shaft Material: Carbon Fiber. Lightweight carbon shafts allow you to shoot straight and further Arrow Point: 100 grain replaceable practice broadheads with standard thread, will be perfect to prevent release Wide Uses: Carbon standard target practice hunting arrows for traditional, recurve and long bow