Lumenok Lighted Crossbow Nock Carbon Impact Flat Bolt Ends 3-Pack HD Orange. The Ultra bright LED technology used in this Lumenok bolt end offers unmatched visibility by other brands. Add a new dimension to your next crossbow hunt and take your bolt home with you. (Flat End .299" ID) Specifications for Lumenok Lighted Crossbow Nock Carbon Impact Flat Bolt Ends: Manufacturer: Lumenok Quantity: 3 Pack Additional Features: For use in Excalibur CamX and Ten Point crossbows. All crossbows that utilize a flat nock. Features of Lumenok Lighted Crossbow Nock Carbon Impact Flat Bolt Ends: Super Bright The Lumenok is a lighted arrow nock used for shot placement recognition & arrow retrieval Now has an easily replaceable battery Uses RB-425 (Lumenok Part # RBS) Fits Carbon Impact: Ultrabolt Velocity Archery: Inflix Bolts Approved Models Per Manufacturer For use in Excalibur CamX and Ten Point crossbows All crossbows that utilize a flat nock. Package Contents: Lumenok Lighted Crossbow Nock Carbon Impact Flat Bolt Ends Lumenok CI3000F3: Lighted Crossbow Nock Carbon Impact Flat Bolt Ends 3-Pack HD Orange