The fastest, most accurate camouflage arrow in the Carbon Express line. Dual Spine Weight Forward technology Arrow Material: Carbon Straightness: +/- .0025" Weight Tolerance: +/- 1.0 grains per dozen Outside Diameter: 250 Spine: 0.295" Shaft Length: 30" Arrow Weight: 250 Spine: 8.0 grains per inch Fletching Weight: 6 grains Insert Weight: 11 grains Nock Weight: 9 grains