Make it easier to find all your arrows in the field after shots with the Nockturnal G Lighted Nocks. Dependable, accurate, and consistent, this illuminated nock activates its built-in LED light with a fail-safe, string-activated linear switch located deep inside the nock. Made of a clear plastic for super visibility, this LED-illuminated nock can be seen hundreds of yards away in daylight or fading light. Designed to go straight from the package to the shaft with no special prep work. Waterproof and shock-resistant design. Nockturnal G models fit most arrows with an inside diameter of .165, including VAP Armor Piercing, Easton A/C/C, and more (arrows not included). Per 3. Weight: 20 gr. Colors:Red, Green, Orange. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Lighted Nocks.