It's 25% sharper than the original stainless steel Montecdelivering incredibly lethal wound channels to big game. The 100-grain Montec CSfeatures a patented one-piece, metal-injected molded design. It's made of 100% carbon steel for diamond-cut sharpness. Spin-tested to guarantee deadly accuracy. Per 3. Size: 100 grain - 1-1/16 cutting diameter. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fixed-Blade Broadheads.