The Predator is designed to offer outstanding strength, durability and high-powered performance for the hunter searching for performance and affordability in a lightweight arrow. The Predator is a rugged carbon composite arrow certain to deliver impressive results. Predator (2040 and 3050) series is perfect for light poundage bows with two spine offerings to fit 20-40 lb. bows and 30-50 lb. bows. Optimal sizes and weighting for young or beginner shooters. Weight sorting tolerance is +/- 3.0 grains. Every Predator series shaft is laser checked for straightness to a remarkable 1/10,000 of an inch. Predator shafts are checked to a straightness of +/- 0.006" as a maximum measurement, not an average. Exclusive Carbon Express Assault low-profile performance vanes for maximum arrow velocity and greater accuracy.