Gold Tip Velocity Hunter 400 Arrows with 4-Inch Vanes (Pack of 12), Black 1 dozen black carbon arrows with 4" vanes 7.4 grains per inch with a +/- 2 grain weight tolerance .246 Accu-Lite nocks (for D-Loop only) and .246 Accu-Lite inserts included Shafts are 32" long, have a straightness tolerance of +/- .006", have a .400" spine, have an outside diameter of .291" and inside diameter of .246" Vane and nock colors vary