Tenpoint Lighted Pro Elite 400 Carbon Arrows The lighted Pro Elite 400 20-inch carbon crossbow arrow is fletched slightly offset and is fitted with a 61-grain aluminum insert, 3.5" Bohning X Vanes™ and TenPoint’s Green molded Alpha-Nock and Alpha-Brite System. Pro Elite shafts are inspected for straightness to within .003 and hand-sorted for weight tolerance to within 2-grains per dozen. Pack Option: 3-pack Nock: Alpha-Nock Straightness: .003" Grain Weight Tolerance: +/- 2-grains per dozen Weight: 400-grains F.O.C: 14% Vane: 3.5" Bohning X Inside Diameter: .300