Carbon Express PileDriver Pass Thru Extreme Small Diameter Fletched Carbon Arrows with 2" NRG-2 Vanes, 6-Pack Arrows come Fletched with 2-inch NRG-2 Vanes, Carbon Express exclusive TCX Nocks and carbon steel PTX half-out inserts (vane and nock color may vary from image) Innovative PTX half-out insert reduces the impact of crosswind drift, and maximizing downrange kinetic energy for deadly performance Laser checked for straightness to a remarkable 1/10,000 of an inch; Straightness of +/- 0.0004-inches is a maximum measurement, not an average Item specifications: 250-Size, 9.36-GPI, 0.390-inch Spine and 0.266-inch Diameter 6-pack of grey finished arrows are sorted and matched by weight and spine for best-in-class consistency