Lighted Nocks Tool Screwdriver Included

High Visibility LED Nocks
Automatically Bowstring Screwdriver Included
Battery life is over 72 hours.
No assembly required.
String-activated: LED will switch on upon the bowstring releasing.

3 Models for Choice:
4.2mm/,165 nock with X bushing fits for .204 arrows.

5.2mm/.204 nock with H, s and GT bushings fit for .233,.244 &.246 arrows.(additional color yellow)
6.2mm/.244 nocks.