Ravin Replacement Lighted Nocks 3 pk. These nocks WILL NOT work in all Ravin arrows - only Ravin lighted arrows Specifications for Ravin Replacement Lighted Nocks: Manufacturer: Ravin Condition: New Features of Ravin Replacement Lighted Nocks Ravin Replacement lighted nocks have been designed to replace ONLY Ravin lighted arrow nocks These nocks WILL NOT work in all Ravin arrows - only Ravin lighted arrows. Package Contents: Ravin Replacement Lighted Nocks Ravin R135: Replacement Lighted Nocks 3 pk