PREMIUM 100% CARBON, the Extreme-carbon fiber supply the good toughness for the arrow. CHECKED 100% with perfect Laser STRAIGHTNESS, also they are equally SPINE and WEIGHT CHECKED for CONSISTENCY. 6-pack of 32-inch arrows fletched with Q2i Rapt-X Vanes(made in USA) give you high strength whether it be in the field hunting or on the 3D course ºItem specifications:Spine 300/GPI 9.1/Straightness ±.006/ID .244, come with Aluminum inserts, Carbon Steel screw in points and Adjustable nocks
