These Steel Broadheads, designed exclusively for Ravin Crossbows, are constructed with 416 steel for extreme accuracy, giving hunters the confidence they need in the field. The blades on this mechanical broadhead deploy upon impact with a 2-inch cutting diameter and have been tested and approved for crossbows shooting up to 450 FPS. The Steel Broadheads from Ravin have a single piece of ferrule and internal spring clip, eliminating the need for lock rings and O-rings. 416 Steel Extreme Accuracy and Penetration Internal Spring Clip, No Lock Ring or O-ring 450 FPS Approved Rear-Deploying Blades Deploys Upon Impact 100 Grain 2-inch Cut