Outfit your Ravin crossbow with these high strength 100% pure carbon match grade crossbow bolts. These bolts feature high impact Ravin engineered lighted nocks with aluminum nock bushings and brass threaded inserts. Match-Grade arrows compensate for the added weight of lighted nocks and weigh the exact same as Ravin non-lighted arrows for the same flight accuracy. These bolts are calibrated to wight 400 grains with the use of a 100 grain field tip or broadhead.Specifications and Features: Diameter: 0.346 Inches Fletched: Yes Fletching Type: 2" Blazer Vanes Grains Per Inch: 9 Material: Carbon Nock Type: Ravin Nocks Overall Length: 20 Inches Quantity: 3 Straightness: 0.003 Inches