Carbon Express Game Slayer Fletched Aluminum Crossbolt with 4-Inch Vanes, 6-Pack AEROSPACE TECHNOLOGY - Aerospace 7001-T6 alloy material for advanced strength and reliability BONE CRUSHING POWER - Tensile strength of 88,000 PSI to achieve bone-crushing power HAND ANODIZED - For ultra-smooth finish and increased penetration PERFORMANCE & VALUE DESIGNED - Handle today's high-powered crossbows and offers exceptional performance and overall value