The Thorn Crown Broadhead has a progression of eight blades stacked in a helical formation that start at 5/8" at the tip and gradually lengthen to 1" at the base. This gives you 3.25 inches of cutting surface that outperforms what you would expect from a 1"cutting diameter, giving you devastating wound channels that stay open. Constructed with 70/75 aircraft aluminum and replaceable stainless steel blades this broadhead can be fired multiple times while remaining pristine. With a titanium threaded tip this broadhead is rated for the fastest of crossbows. Features:8 helical stacked blades Improved wound channel in a smaller package Aircraft aluminum and stainless steel constructionOne set of replacement blades Thorn Broadheads Thorn Crown Crossbow 125gr Broadhead TBCROWNCROS125-3