Easton Bloodline arrowsEnjoy increased velocity in reduced diameter lightweight and high strength carbon shaft. The Easton Bloodline series offers lighter grains per inch (GPI) in hunting arrows to achieve increased flight speed and lethal penetration all within a tight . 003 tolerances. New from Easton, Enhanced Front of Center (FOC) brass inserts are included. ABOUT THE PRODUCT 6MM reduced diameter uniform USA made ACU CARBON construction Specifications: 6MM ST RPS 8 32