ZEUS LIGHTED NOCKS H

They designed the off switch so that you won't need tools and made it so it is flush with nock so that it won't turn off after it hits your target.

Other Features:

• 5 DIFFERENT SIZE NOCKS AVAIABLE FOR JUST ABOUT ANY ARROW - Including Gold Tip, Easton, Black Eagle, Nightmare Xtreme, Mamba, Trophy Ridge, Carbon Express, Deer Crossing and many other arrow brands.  Check your size before ordering.
• SUPER BRIGHT VIVID GREEN LIGHT with LONG LASTING LITHIUM BATTERIES - Shoot it anytime during the morning, day or dusk. Our batteries are designed to last 48 hours, more than double many other brands
• RELIABLE AND DURABLE - Piston driven contact switch ensures L.E.D. illumination every time. Waterproof and shock resistant design is second to none.
• NO ASSEMBLY REQUIRED - Nocks can go straight from the package to the shaft in fully operational condition. No prep work needed. Just insert it, and you are ready to shoot.
• +/- 0.02 Gr. Weight Tolerance
• 24 Grains
• H NOCK 5.9MM .234"