Magnus Black Hornet Ser-Razor Broadheads 2 Blade 125 gr. 3pk. Two blade, fixed blade cut on contact broadhead that features a 1 1/4? cutting diameter. Blade features a thickness of .059?. Made of knife grade stainless steel with chiseled serrated edge and a patented diamond tip. Colors: Black Features: Cut on contact Knife grade stainless steel Patented diamond tip