Check the listing for details. Black Eagle Deep Impact Shafts - .001" Dozen - 400. Color: Black, Condition: New. Listed at 161.99 USD. Black Eagle Deep Impact Shafts - .001" Dozen - 400The name says it all. This incredibly light and strong micro-diameter shaft was developed using cutting-edge carbon manufacturing techniques. This shaft uses fine-tuned spine-to- weight ratios to maximize speed, kinetic energy, penetration, and also to provide the flattest trajectory possible. SHAFTS INCLUDE:Black Eagle Arrows Micro-Nock - 8 GrainsNote: Spines 600 - 900 Only Available In .001 Straightness300-500 Spine Includes Black Eagle Arrows Black Anodized OutsertsSpine: 400GPI: 8.6 If you require your arrows to be cut, we would be happy to do so. Please make sure to include a customer's note before completing your order. If you send a message through eBay messaging, your note may not be seen before your order is shipped. We measure from the valley of the nock to the end of the carbon. If you require a different measurement, please notify us in the comment box.