The lighted XX75 20-inch 2219 aluminum arrow is fletched slightly offset and is fitted with a 13-grain aluminum insert 2.0 Easton Bully Boattail Vane and TenPoint’s Green molded Alpha-Nock and Alpha-Brite System. – Pack Option: 3-pack – Nock: Alpha-Nock – Straightness: .003 – Grain Weight Tolerance: +/- 2-grains per dozen – Weight: 435-grains – F.O.C: 9% – Vane: 2 Easton Bully Boattail Vane – Inside Diameter: .305