3pcs 0.165 Inch LED Lighted Nocks Bowstring Activated for Compound Bow ID 4.2mm

Description

Feature:
Up to 48 hours of battery life(non-replaceable).
Bowstring Activated On-off Switch.
Waterproof and shock resistant.
No assembly required.
Lightweight and precision-balanced for superior accuracy.
Suitable for Arrow Bolt with inner diameter 4.2mm(0.165").
Specifications:
Color: red , blue , green
Material: clear plastic + LED stick
How to use:
Nocks can be inserted to the shaft easily and in fully operational condition.
Automatically lighted after shoot.
Nocks can be turned on or off easily by pushing the switch.
Package included:
3pcs x lighted nocks
Note:
1.Due to the light and screen difference,the item's color may be slightly different from the pictures. Please understand.
2.Please allow slight differences due to manual measurement.