The Black Eagle .2445 100 Grain Brass Insert 13 is designed to enhance the front-of-center (FOC) balance of your arrows, providing improved accuracy and penetration. Compatible with shafts that have a .2445-inch internal diameter, such as Carnivore, Outlaw, Zombie Slayer, and Vintage arrows, this brass insert is tapped all the way through, allowing for additional weight customization. Made from high-quality brass, it ensures durability and consistent performance, making it ideal for both hunting and target shooting