12 PCS 31" Golden Power 580 SP Aluminum 1916 Arrow Completed, for Hunting & Practice Archery, Recurve & Traditional Bow Shaft Material: 7001 T6 aluminum Stright degree:6/1000 Vane: 2.5" TPU material weight: 28-30g Length: 31" OD: 7.54 mm Defliction: 580 SP