Lighted Nocks for Arrows - 6PCS High-Visibility LED Illuminated Knocks | Fits .204, .233, .244, .246 Diameter

• External on/off Switch: no screwdriver required. Press the nock DOWN to turn the light ON. Press the nock UP to turn the light OFF
• Widely Use: TRIBOUND lighted nock is designed for .204 diameter arrow, and is also compatible with .233, .244, .246 with bushings 72+ Hours Life Span: first 48 hours very shinny, become dim in the following 24 hours, allowing you to easily track your arrows day and night
• 100% Water Proof
• Light Weight: about 21 grains
• Tightness Adjustable: the screws are only for adjusting the switch’s tightness, not for daily use. If you feel the switch is too loose or tight, you can use the screwdriver included to adjust the tightness, or the screwdriver is not needed

TRIBOUND lighted nocks are compatible with X/ .204", H/ .233", S/ .244" & GT/ .246" diameter arrows. The 72+ hours long-lasting lithium batteries allow you to easily track your arrows day or night. External on/off switch without tools required enhances the experience in night hunting. The unique design of tightness adjustment screw satisfies the need of diverse group.