Includes: 8gr IP Nock; Micro-diameter Arrow: 100% carbon fiber construction for maximum speed and accuracy with less wind deflection; Spine Aligned: Every Arrow Digitally Spine Aligned For Increased Accuracy and Shot to Shot Consistency; Matched Weight: Each Dozen Weight Matched to +/-0.5 Grains for Precise Shot Consistency and Tighter Groupings; Advanced Nano Ceramic Arrow Coating Improves Penetration and Allows for Easy Removal from Targets