The Thunderhead Wide-Cut Broadhead Replacement Blades are the perfect choice for any serious hunter. With a special three-blade design, these 100-grain blades are designed for maximum penetration and accuracy. They cut through bone and tissue with ease and create a large wound channel for blood loss, making it easier to follow the trail. If you're looking for replacement blades for your Thunderhead broadheads, the Thunderhead Wide-Cut Replacement Blades are a great choice. 18 Blades per Pack 100 Grain