Nockturnal G Lighted Nocks

Shoot it at dusk, and with 20+ hours of battery life, you can still find your arrow the next day. Nocks can go straight form the package to the shaft in fully operational condition. No prep work needed. Just insert it, and you are ready to shoot. Piston driven contact switch ensures L.E.D. illumination every time. Waterproof and shock resistant design is second to none. FEATURES FITS ARROWS WITH INSIDE DIAMETER OF .165 High visibility lights No assembly required Long lasting lithium batteries