Altra Centrum 23 Limited Shafts .003 400 1 doz. High-grade carbon shafts;Straightness spec: Up to 0.003 inches;NO SPINE Technology for improved tunability and consistency;State-of-the-art measuring equipment for straightness verification;Weight matched to +/- 1 grain;32" total length;Comes in 12 pk shafts;Components not included;Premium components made from high-grade aluminum and stainless steel