TenPoint Pro Elite 3Pack 20" Carbon Crossbow Arrow w/ Lighted Alpha Nocks #HEA668.3The lighted Pro Elite 400 20inch carbon crossbow arrow is fletched slightly offset and is fitted with a 61grain aluminum insert, 3.5" Bohning X Vanesâ and TenPointâ™s Green molded AlphaNock and AlphaBrite System. Pro Elite shafts are inspected for straightness to within .003 and handsorted for weight tolerance to within 2grains per dozen.Specifications:Nock: Alpha: NockStraightness: .003"Grain Weight Tolerance: +/ 2grains per dozenWeight: 400grainsF.O.C: 14%Vane: 3.5" Bohning XInside Diameter: .300