Double Take Archery Glory Nock S 1 pk Red. These Arrowheads & Nocks by Double Take Archery are bowstring activated so that the LED lights up with the force of the bow. If you desire a glow that is easy to see in the dark look no further than the Double Take Glory Nock. The small size and lightweight design fits any arrow and can be attached or removed with no special tools. For added safety a carbon shaft is used when the Glory Nock is installed. However charging the Glory Nock with AA batteries (purchased separately) is recommended. Package Contents: Double Take Archery Glory Nock Double Take Archery GN-1201: Glory Nock S 1 pk Red