Fixed blade broadhead features the patented Alcatraz Bladelock design that completely interlocks the stainless steel blades inside the ferrule. The steel Rhinoferrule houses 4 imprisoned, aerodynamic razor sharp.035" blades for the best combination of accuracy, strength, penetration and hemorrhage. Available with either a 1" or 1 1/4" diameter 85, 100, or 125 grains.