NAP Bloodrunner Mechanical Broadhead 2 Blade 2 1/16" Cut Diameter 100 Grain 3 Pack w/ 2 Free Practice Heads 100 grain, 3 pack 2 1/16 inch cutting diameter 035 inch thick stainless steel blades The hybrid mechanical design of the Bloodrunner provides a low 1 1/8" profile in flight for field point accuracy Designed with two scary sharp 0.035" thick stainless steel blades, the Bloodrunner is strong enough to stand up to even the toughest targets Expands to a full 2 1/16" cutting diameter on impact that stays open all the way through your target The Bloodrunner Practice Heads will preserve your broadheads for the field The practice head is engineered to perform with the same accuracy as the Bloodrunner Broadheads