- Compatible with 7.62mm Carbon Express Arrow Shafts: Designed specifically for shafts with a .300 inside diameter, ensuring a perfect fit for optimal performance. - Long-lasting Battery Life: Equipped with high-quality lithium batteries that provide continuous use for up to 24 hours, ensuring reliable illumination during your shooting sessions. - Automatic Illumination: These lighted nocks activate automatically upon shooting, eliminating the need for manual assembly or operation, making them user-friendly and efficient. - High Visibility Design: Constructed from clear plastic for maximum light transmission, these nocks enhance visibility in low-light conditions, allowing for easier tracking of your arrows. - Durable and Reliable: Featuring a piston-driven contact switch, these nocks are built to withstand rigorous use while ensuring consistent performance and illumination every time. Use Scenarios: - Night Hunting: Perfect for tracking arrows in low-light environments, ensuring you never lose sight of your shot. - Competitive Shooting: Enhance your visibility during competitions, providing clear feedback on your performance and accuracy. - Target Practice: Ideal for practicing in dim conditions, allowing you to see your arrow's flight path and impact location clearly. Choose these lighted nocks for an enhanced shooting experience, combining functionality, reliability, and ease of use in every shot.