3pcs High-visibility Blue X/S/GT LED Lighted Nocks Bowstring Activated On-off

Description

Feature:
About 30 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.
Fits most standard arrows.
Specifications:
Color: blue
Material: clear plastic + LED stick
Size:
X size: Fits arrow shafts with Internal diameter 5.3mm (0.209")
S size: Fits arrow shafts with Internal diameter 6.2mm (0.244"-0.246")
GT size: Fits arrow shafts with Internal diameter 6.3mm (0.248")
Weight: 20 grain
How to
use:
Nocks can be inserted to the shaft easily and in fully operational condition.
Automatically lighted after shoot, there is no need to turn it on manually.
Nocks can be turned on or off by the mini screwdriver.
Package included:
3pcs(1 set) x lighted nocks (with one mini screwdriver)
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.