Carbon Express Torrid Expandable 3-Blade Crossbow Broadhead, 100 Grain Weight, 3-Pack CLOSED FLIGHT - The Torrid 100 remains closed in flight which makes the arrow more accurate as compared to mechanical broadheads DEVASTATING CUTTING DIAMETER - The Torrid 100 blades are longer since they wont affect flight which results in a larger wound channel, more bleeding, easier tracking, and a quicker more ethical kill. ANODIZED AIRCRAFT-GRADE ALUMINUM FERRULE - Increased toughness and durability ITEM SPECIFICATIONS: 100 Grain, 0.31" Blade Thickness, 1 1/2" Cutting Diameter