6pcs Arrows Lighted Nock Automatically String Activated ID 6.2 mm Arrows Hunting

Description

Feature:
About 30 hours of battery life (non-replaceable)
Bowstring Activated On-off Switch
Waterproof and shock resistant
High- Visibility LED, no assembly required.
Light weight and precision-balanced for superior accuracy.
Fits most standard arrows. String activated linear switch.
Color: Green, red, blue, yellow, purple.
Weight: 20 grain
Material: Clear plastic + LED stick
fit for  ID 6.2mm arrows
How to use:
Nocks can be inserted to the shaft easily and in fully operational condition.