Killer Instinct Lighted Hypr Lite Crossbow Bolts 20in 3Pk. Advanced Carbon Construction creates spine consistency for greater accuracy exceptional reliability and repeat performance. Specifications for Killer Instinct Lighted Hypr Lite Crossbow Bolts: Manufacturer: Killer Instinct Quantity: 3 Length: 20 in Weight: 370 grain Diameter: 0.346 in Overall Length: 20 in Nock Type: Half Moon Fletching: 3 inch Vanes Fabric/Material: Carbon Archery Application: Backpacking Features of Killer Instinct Lighted Hypr Lite Crossbow Bolts True Straightness Tested .003in Fast Flying Maximum Speed 370 Grains Total Grain Weight with 100 grain Point Advanced Carbon Construction Precision Sorted For Straightness to +/- 0.003in For Maximum Consistency 20in Length Fletched with 3in Vanes 370 Grains Total Weight with 100 grain Point Includes Pre-Installed Lighted Half-Moon Nock Package Contents: Killer Instinct Lighted Hypr Lite Crossbow Bolts Killer Instinct 2065-3: Lighted Hypr Lite Crossbow Bolts 20in 3Pk