Product Details Material: Carbon Length: 30 Full Length:31.5 Spine: 500 GPI: 13.0 grain Shaft diameter: Outer 7.85mm Inner 6.2mm Weight: About 35g each Condition: New item Features: aluminum seat convertible with a variety of inch thread arrow Suitable for Compound bow 35-60pounds Package includes 12 pieces of carbon arrows. 6 Nock for free...