1. Material: pure carbon fiber 2. Size: 31",30",28" 3. GPI: 9.0 4. Spine: 340 Hunting Carbon arrow, GPI 9.0, SPINE 340 Material Out Diameter Spine Straightness GPI/InchLength carbon fiber 100 % 0.295"340 less 0.3% 9.031"/30"/28"Package: 400pcs/cartonMoq: 1 CartonIf you want to change the color of nocks and vanes, If you want to printing on the vanes. Just tell us. We can do it. The colour of ...