Parameters Finish Polished black carbon finish Material 100% carbon hunting arrow straightness Pro ± .001” Weight tolerance ± 2 grains Components Inserts, points, and nocks Features and applications The arrows are put in the classes by their straightness and the lower the number. Our carbon arrows are Laser checked for straightness to a remarkable 1/10,000 of an inch; Straightness of +/- 0.0025. Details Our arrows are all made by high level quality carbon fiber, that could keep per arrows at very precise spine and straightness. We not just supply arrow shaft but whole solutions on archery, shaft, components, printing, checking, assembling, packing etc,. Qualifications Our carbon arrows are engineered with a specific 100% carbon-fiber layup for increased velocity. Includes aluminum point outsert to boost both strength and front-of-center accuracy at long range and comes pre-installed with 4MM nocks. Delivery, shipping we offer a variety of stock carbon arrow shaft.  If you cannot find what you are looking for, please leave us message. We can make your carbon fiber arrows special. FAQ Q: What length of your arrow shaft? A: longest 33inch, could cut to any length you want. Q: Do you provide complete arrows but not shaft ? A: Yes, we provide complete arrows as well. Q: What express company you use? A: DHL, Fedex, UPS