The Lumenok Lighted Spartan Nock in Orange is specifically engineered for Black Eagle Spartan arrows, delivering high visibility and pinpoint accuracy for serious bowhunters. Featuring a .224" inside diameter fit, this lighted nock requires no outsert, allowing for seamless performance with bag targets and in-the-field use. Lumenok&';s proven lighted technology activates upon release and includes a replaceable battery for extended usability. This 3-pack is perfect for archers who want reliable shot tracking and consistent illumination with every arrow fired.