Check the listing for details. Altra Centrum 23 Premier 300 12PK Shafts. Color: Black, Condition: New. Listed at 189.99 USD. Altra Centrum 23 Premier 300 12PK Shafts Altra Arrows® 23 Shafts are built on an architecture of accuracy. Comprised of high-grade carbon shafts, premium components, and sophisticated manufacturing processes that work in combination to deliver the most accurate and efficient arrows on the market.Altra Arrows® Centrum Premier line sets the mark for quality with industry leading straightness of .001”. Using state-of-the-art measuring equipment to verify arrow shaft and component straightness, along with Altra’s weight matching process ensures you are getting the most consistent arrows available. Manufactured from a proprietary blend of high modulus carbon this sophisticated construction results in Altra Arrows® NO SPINE Technology, delivering an unrivaled arrow with improved tunability and increased consistency. The shafts are accompanied by premium components made from high grade aluminum and stainless steel. Altra Arrows® attention to detail helps to create better archers so that they can reach The Pinnacle of Precision & Performance™.Features:Comes in 12 pk Shafts QTYAll arrow packages are weight matched to be +/- 1 gn32" Total LengthComponents Not IncludedNO SPINE Technology