Nockturnal nocks, the Fit is guaranteed to reliably activate immediately when the string is released, and it can be switched off quickly and easily with the newly designed Nockturnal Nock Tool, a small screwdriver, or most broadhead tips via an opening in the side of the nock. With 20+ hours of lithium battery life, each Nockturnal Fit weighs approximately 25 grains and will remain brightly lit for plenty of time of arrow retrieval and can be easily spotted in daylight or darkness.
