Flex Fletch Pro 2.5 Premium Archery Vanes Set of 36 Grey. 5 Vanes are engineered for precision and control in archery featuring a streamlined 2.5-inch shield cut design for minimal drag. These lightweight vanes at 5.6 grains each are built from an innovative urethane material that ensures durability and consistent arrow flight. They're versatile for both 3D archery and hunting setups Specifications for Flex Fletch Pro 2.5 Premium Archery Vanes: Manufacturer: Flex Fletch Quantity: 36 Pack Height: 0.475 in Length: 2.5 in Features of Flex Fletch Pro 2.5 Vanes: Length: 2.5 inches Height: 0.475 inches Weight: 5.6 grains Suitability: Suitable for 3D and hunting Package Contents: Flex Fletch Pro 2.5 Vanes Flex Fletch PROBGRY: Pro 2.5 Premium Archery Vanes Set of 36 Grey