The Double Take Archery Halo Nocks Micro Pink is designed for precision and reliability. Its patented design ensures that the nock won't accidentally activate when placing on the bowstring, providing consistent performance with every shot. This innovative design also eliminates the risk of a "mini-dry fire" that can occur with other lighted nocks. The Halo Nock is refreshingly simple to use and available in various colors and sizes. With fast shipping, you can get your hands on this product quickly. Double Take Archery offers high-quality products that meet the needs of archers.Key Benefits and Features: Micro: .165"-.166" Pack: 3