Carbon Express T1255 Predator II Hunting Arrow with 2-Inch Assault Vanes for Beginner Level Shooters, 6075-Sized Blue/Black Shaft Designed to offer outstanding strength, durability and high-powered performance in a lightweight arrow Rugged carbon composite arrow certain to deliver impressive results Laser checked for straightness to a remarkable 1/10,000 of an inch Items specifications: 6075 Size, 30-Inch Length, 10.01-GPI, 0.331-Inch Spine and 0.300-Inch Diameter Perfect for light poundage bows with (2) spine offerings to fit 20 to 40-pound bows and 30 to 50-pound bows