Today's high-performance crossbows demand an expandable broadhead with deadly down-range accuracy. That's why Thorn developed the Thorn HPX Expandable Broadhead, rated for Crossbows that shoot up to 500 feet per second. The Thorn HPX Expandable Broadhead features patented “Hidden Blade” technology and a rock-solid machined titanium “Rip-Tip. At impact, the “Rip-Tip” delivers bone-crushing penetration and deploys the hidden blades creating a one and three quarter inch cut. Includes (3) broadheads, (6) sheer pins and (1) practice clip.