Easton XX75 Magnum Aluminum 22 -Inch Crossbow Bolt 6 pack- The XX75 Magnum is effortless to pull from a target and is quiet shooting. It is made from durable 7075-T9 aluminum alloy. It will supply an abundance of kinetic energy down range. Guaranteed straightness A .003 inchesWeight Tolerance A 0.2 grainsHard-anodized finishStrength 96,000 psiMade of 7075-T9 Alloy22 inches long13.8 grains per inch