Carbon Express 20" Carbon Speed Crossbolt, 5pk: * Superior accuracy, speed and performance * Constructed from light high modulus carbon fiber to deliver better accuracy * Delivers a more accurate spine to weight ratio * Crossbolt is approximately 10 percent lighter * 15" per second faster than a standard aluminum bolt * Delivers flatter trajectory for longer shots * Complete set includes both moon nocks and flat nocks * Nocks are simple to remove