Combining cut-on-contact fixed blades with two 2.3" expandable blades that open a massive wound channel, Rage's X-Treme Four-Blade Broadhead delivers lethal results and easy-to-follow trails. Black anodized aircraft-grade aluminum ferrule. Slip Cam ensures blades deploy every time, while a shock collar ensures they don't open too soon. Comes with an extra set of red shock collars that withstand the energy of modern bows and crossbows. Per 2.