With a proven mix of geometry and weight this head is designed to quickly stabilize short crossbow bolts for great flight and exceptional accuracy. With bone-crushing penetration this head offers a huge cut, strength, penetration and reliability all in a replaceable blade package specifically designed for today's ultra-fast crossbows. Blades: 0.35 SS LUTZ Tip: 4 Edge, Bone Splitting Total Cut: 1 1/8" + 1 1/8" Total = 2 1/4" Ferrules: Super Steel Made in the USA