Upgraded switch design for more stable performance; does not light up before activation. Automatically turns on when drawn. Can be manually pushed up to turn off without disassembly. Equipped with lithium batteries, ideal for low-light hunting with over 48 hours of battery life, enabling easy arrow tracking during day or night. Designed to enhance efficiency in low-light conditions, improve shooting precision, and increase retrieval success. Features a flashing high-visibility light to help locate your arrow quickly. Compatible with aluminum, carbon, and fiberglass shafts. Made from PC material. Color: green. Package Contents: 3 x 4.2mm luminous nocks 3 x 5.18mm conversion rings 3 x 6.2mm conversion rings Note: The package includes only the items listed above. Other products are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.