Carbon Express Predator 6075 spine Carbon Arrows - 12 Pack - The Predator series is designed to offer outstanding strength, durability, and high-powered performance for the archer searching for the performance and affordability in their arrows. The Predator is a reliable, and affordable carbon arrow with spine sizes to fit archers of all sizes. Carbon composite arrow designed for outstanding strength and durability. Straightness tolerance of +-.006in and weight tolerance of +-3.0 gr.