"Pairing true flying accuracy with Rage's No Collar blade retention system, the Rage Crossbow X NC 2-Blade Mechanical Broadhead delivers a big cut for better bloodtrails. Built to handle the extreme speeds of modern crossbows, this 2-blade design pairs a high-strength anodized aluminum ferrule with a large cut-on-contact leading-blade tip that helps ensure smooth entry. The No Collar retention system holds the Crossbow X NC's 2 razor-sharp .039"" stainless steel blades tight until impact, where they deploy to deliver a large 2"" wound channel through game for hearty blood trails. Deadly, true-flying broadhead for crossbow hunters Big 2"" cutting diameter No Collar blade retention system - no shock collars, dental bands, or O-rings 2 razor-sharp .039"" stainless steel blades Large cut-on-contact tip blade High-strength anodized aluminum ferrule"