Black Eagle Vintage® carbon arrow shafts have a classic, custom wood arrow look. The wood grain carbon gives you all the advantages of carbon with that warm wood appeal. Every pack is spine matched ±.010" and weight matched to ±1 grains per 6-pack for consistent shooting. The straightness is checked on the full length of the extra long 34" shaft. Straightness ± .005". Inside diameter of .2445". Recommended field point: 5/16". Each carbon arrow shaft is inspected for quality, and features a Duracoat wood grain overlay finish to allow for refletching or cresting. Installed with Black Eagle Standard nock (12 gr) and includes aluminum inserts (14 gr). Available in (spine/GPI): 600/7.9, 500/8.5, 400/9.2, or 350/9.8 Features: Premium 100% Carbon Duracoat Wood Grain .005 Straightness or Better ±1 Grain Weight Tolerance 34" Shaft Length Black Eagle Vintage® Carbon Shaft Specifics Spine Point GPI Length Insert Nock PointCollar NockCollar 350 5/16" 9.8 34" 14gr Black Eagle Standard D D 400 5/16" 9.2 34" 14gr Black Eagle Standard C C 500 5/16" 8.5 34" 14gr Black Eagle Standard C C 600 5/16" 7.9 34" 14gr Black Eagle Standard B B Straightness ±.005" Weight ±1gr