Gold Tip XT Hunter 500 Carbon Arrows with 2-Inch HP Vanes (Pack of 12) 1 dozen Mathews Lost carbon arrows with 2" HP vanes 8.2 grains per inch with a +/- 2 grain weight tolerance .246" GT-Series nocks and .246" Accu-Lite inserts included Shafts are 30" long, have a straightness tolerance of +/- .003", have a .500" spine, have an outside diameter of .297" and inside diameter of .246" Vane and nock colors vary