Perfect for the home or car

• Tuning system unlike any other before

and TriLock™ technologies

• Tough aluminum eyecup tube

and forgiving 27 diameter arrow

Nockturnal Shift Lighted Nock with FIT Technology Nock Color:Strobing Red/Green Perfect for the home orThe next generation of Lighted Nock is the Nockturnal Shift Super Strong Clear Polycarbonate Construction Waterproof and Shock Proof Weight: Approximately 25 grains Delivers more than 20 hours of lithium powered battery life Quantity: 2 pack Fits X, H, S, and GT Arrows: X (no collar) fits smaller diameter carbon . 204 ID shafts H (white collar) fits carbon . 233 ID shafts S (gray collar) fits standard carbon . 244 ID shafts GT (black collar) fits