Altra Arrows Centrum 25 Premier Shafts. Crafted from high-grade carbon with a proprietary blend of high-modulus materials these shafts feature Altra's NO SPINE Technology for unmatched tunability and consistency. With an industry-leading straightness of .001 inches each shaft is meticulously verified using state-of-the-art measuring equipment. The weight-matching process ensures every arrow is within +/- 1 grain providing optimal consistency. These 32-inch shafts come in packs of 12 and are complemented by premium aluminum and stainless steel components making them the ultimate choice for achieving the pinnacle of precision and performance. Specifications for Altra Arrows Centrum 25 Premier Shafts: Manufacturer: Altra Arrows Color: Black Size: 250 Features of Altra Arrows Centrum 25 Premier Shafts: High-grade carbon shafts Industry-leading straightness: .001 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 Package Contents: Altra Arrows Centrum 25 Premier Shafts