- Lighted Nocks for 7.62mm Arrow: Designed to fit all Carbon Express arrow shafts with a .300 inside diameter, these nocks ensure compatibility and ease of use for your archery gear. - Long Battery Life: Equipped with high-quality lithium batteries, each nock can provide continuous use for over 24 hours, ensuring reliable performance during extended shooting sessions. - Automatic Illumination: These nocks light up automatically upon release, eliminating the hassle of manual activation. They are user-friendly and require no assembly, making them perfect for both seasoned archers and beginners. - High Visibility: Crafted from clear plastic, these nocks maximize light transmission for improved visibility in low-light conditions. The durable design features a piston-driven contact switch that guarantees consistent illumination every time. Use Scenarios: 1. Ideal for night hunting or evening practice sessions, ensuring you can track your arrows easily in low visibility. 2. Perfect for competitive archery, allowing you to quickly locate your arrows after they hit the target, saving you time during competitions. 3. Great for casual target practice, making each arrow launch exciting and visually rewarding while enhancing your shooting experience. Enhance your archery performance with these reliable and easy-to-use lighted nocks, providing lasting visibility and compatibility with your gear. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.