Fits .204" / 5mm ID
Weight - 24 grains
Each Lumenok is equipped with a replaceable battery (Part No. RBS).
The Lumenok lighted arrow nock is activated upon the shot to allow archers to follow the path of their arrow. This model Lumenok provides up to 40 hours of illumination and can be seen from great distances. No magnets required for activation. This Lumenok is made using an R nock from Black Eagle.