The Easton Full Metal Jacket 300 Carbon and Aluminum Arrow Shaft Pack of 12 is a top-notch choice for serious bowhunters. This pack of 12 arrows boasts exceptional durability and stopping power, making it perfect for taking down big game. The unique combination of a carbon core wrapped in aircraft-grade aluminum provides unparalleled penetration capabilities. With its N-Fused Carbon Nanotube core, this arrow can withstand even the toughest hunting conditions. Easton's patented HIT insert system ensures superior broadhead alignment, giving you a clear advantage in the field. And with fast shipping, you can get your hands on these deadly arrows in no time. Plus, at an affordable price, you won't break the bank. Whether you're a seasoned pro or just starting out, this arrow shaft pack is sure to deliver.Product Features and Specifications: Material: Aluminum/Carbon Grains Per Inch: 12 Insert Weight: 16 Grains Inserts: X HIT Insert Nock Type: X Nock Nock Weight: 9 Grains Outside Diameter: 5 Millimeter Overall Length: 32.5 Inches Quantity: 12 Spine: 300 Straightness: 0.002 Inches Weight Tolerance: 5 Grains