The Killer Instinct HYPR-V Crossbow Bolts are designed for maximum penetration and devastating knock-down power. These bolts feature advanced carbon construction, which ensures spine consistency for greater accuracy and exceptional reliability. The precision sorting process guarantees straightness to +/- 0.003" for maximum consistency. With a length of 20 inches and fletched with 3-inch vanes, these bolts are perfect for big game hunting. The heavy weight of the HYPR-V Crossbow bolt delivers hard-hitting kinetic energy. Fast shipping ensures you get your gear on time to tackle your next hunt. The HYPR-V Crossbow Bolts are available in a pack of six, making them an excellent choice for hunters who need reliable and consistent performance.Key Benefits and Features: LENGTH: 20" STRAIGHTNESS TOLERANCE: +/- 0.003" INNER DIAMETER: 0.300" OUTER DIAMETER: 0.346" GRAIN WEIGHT TOLERANCE: +/- 1.0