Muzzy Trocar HB 100gr Expandable Broadhead - 3 Pack - Broadhead's compact profile offers a 3/4in x 1in in-flight diameter. Upon impact, the blades deploy to a massive 2-5/8in total cutting surface for killer wounds and easy-to-follow blood trails. Plus, the deployed head penetrates like a fixed blade by allowing the blades to close if heavy bone is contacted. Once these blades have passed bone, they reopen to continue shredding tissue and vitals. Built on a hard-hitting solid-steel ferrule and chisel tip for deep and deadly penetration. Steel Ferrule with Chisel Tip 100 grain Standard and Crossbow Model (HBX) 1 -Inch fixed Blade Cutting Diameter 1-5/8 -Inch Expandable Cutting Diameter Offset Fixed Blades to induce spin 3 per pack Model- 297