Arrow Dynamics Traditional Series Black carbon shafts are specially designed for traditional hunters. The patented parallel-to-taper design gives these carbon shafts the correct spine-to-weight combination to work with a wide variety of recurves and longbows. Tapered carbon arrows experience faster shot recovery and less wind drag for improved accuracy. Expect to see deeper penetration over parallel shafts of equal diameter. The black (even includes grain run out) non-glare durable finish that will not wear off or fuse into targets. Use 11/32" field points and broadheads. Nock end features a .204" inside diameter. Sold by the dozen and 6-pack, full length. Bohning A nocks (or Easton X nock) installed, inserts included, but not installed. Arrow Dynamics Traditional Black Carbon Shafting Specifics Spine Point Total Shaft Weight GPI Length Insert Nock PointCollar NockCollar Traditional55 - 70# @ 28" 11/32" 350gr 10.8 32" 26gr Bohning A Nock/Easton X Nock J -- Traditional Lite35 - 55# @ 28" 11/32" 275gr 8.4 32" 26gr Bohning A Nock/Easton X Nock I -- Traditional XLite30 - 45# @ 28" 11/32" 250gr 7.8 32" 26gr Bohning A Nock/Easton X Nock I -- Straightness ±.006" Weight ± 7 gr