The Nockturnal Shift Universal Red Lighted Nock 3pk NT-830 is designed to provide archers with maximum visibility and precision. Featuring a bright red LED, these lighted nocks are activated by a string-activated linear switch, which illuminates the nock upon release. The external on/off switch allows for easy deactivation, while the durable polycarbonate casing ensures long-lasting performance. Compatible with X, H, S, and GT arrows, these nocks offer over 20 hours of battery life, making them ideal for hunting and target shooting in low-light conditions. Nockturnal Shift Universal Red Lighted Nock 3pk NT-830