Lumenok Crossbow Bolts Carbon HD Org w/Flat Nock 20 in. 3 pk. Bolts are squared on the nock end to ensure proper functioning of the lighted nock. Factory fletched with 4" vanes. Length: 20". Includes brass inserts. Weight: 338 gr. (without point). Specifications for Lumenok Crossbow Bolts Carbon: Manufacturer: Lumenok Color: HD Orange Quantity: 3 Pack Length: 20 in Included Accessories: HD Orange - Flat Nock Nock Type: Flat Archery Application: Hunting Package Contents: Lumenok Crossbow Bolts Carbon Lumenok BECF3: Crossbow Bolts Carbon HD Org w/Flat Nock 20 in. 3 pk