Led nocks make it easy to follow the flight of your arrow when it is dark. Besides that you can also see the arrows when they are in the target and find the ones that missed the target. The nock is activated when the arrow leaves the string and have a lifespan of around 20 hours. The nocks can be pushed into the shaft, there are no extra tools needed.
Features Nockturnal Lighted nocks:
Available colours: Red, Green, Blue or PinkSize: G-sizeSuited for arrows with an id of 0.166inch (4,2164mm)Comes in a set of 3