Description 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.PRODUCT DETAILS:Matched Set â All Predator⢠series 6-pack sets are sorted and matched by weight for best-in-class consistency. Weight sorting tolerance is +/- 3.0 grains. Real Straightness â 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. Performance Vanes â Exclusive Carbon Express Assault⢠low-profile performance vanes for maximum arrow velocity and greater accuracy. Parabolic Feathers â Parabolic cut feathers feature uniform pre-ground quills for consistent flight and exceptional accuracy. The parabolic profile has a consistent height of roughly 5/8" with slightly less surface area compared to shield cut design which results in a quieter overall flight.Sizes: 1000 (5.48gpi & 1000 spine), 900 (5.91gpi & .900 spine), 800 (5.96gpi & .800 spine), 700 (6.45gpi & .700 spine), 2040 (7.04gpi & .600 spine), 3050 (8.06gpi & .500 spine), 4560 (8.97gpi & .400 spine), 6075 (10.01gpi & .350 spine) Diameter: . 228" (1000), .231" (900), .244" (800), 247" (700), .277" (2040), .281" (3050), .295â (4560), .300â (6075) Length: 30.0â (1000, 900, 800, 700, 2040, 3050, 4560) 31.0" (350) Straightness factor: ±.006" Weight tolerance: ±3.0 grain