Lighted nocks that fit all standard carbon arrows with internal diameter of .245-.246 ie; Carbonwood, Traditional Extremes, Goldtips, Carbon Express, Eastern etc
Can stay alight for 48 hours continuously.
Light is activated by the bow string when shot using a micro switch in the valley of the nock.
To turn off there is a brass slide switch on the side to easily turn off.
Sold in a pack of 5