TenPoint Crossbow Technologies Pro Elite 400 Select Carbon Arrows w/ Alpha-Nock HP .001in 20in Pack of 6 Black. It uses a 3-inch Q2i Fusion X-II vane fletching a 58-grain aluminum insert and a 13 percent FOC. Each arrow is fitted with an Alpha-Nock HP and an HP aluminum bushing for added strength and repeatable nock travel. Arrows are inspected to 0.001-inch straightness and weight matched within 1 grain per arrow. Specifications for TenPoint Crossbow Technologies Pro Elite 400 Select Carbon Arrows w/ Alpha-Nock HP: Manufacturer: TenPoint Crossbow Technologies Archery Application: Hunting Color: Black Fabric/Material: Carbon Quantity: Pack of 6 Length: 20 in Nock Type: Alpha-Nock HP Straightness: 0.001 in Size: 20 in Package Contents: TenPoint Crossbow Technologies Pro Elite 400 Select Carbon Arrows w/ Alpha-Nock HP TenPoint Crossbow Technologies HEA-670.6: Pro Elite 400 Select Carbon Arrows w/ Alpha-Nock HP .001in 20in Pack of 6 Black