Demo crossbows may have light handling marks or blemishes from showroom handling but have not been cocked or fired. Easily track the flight of your Ravin-Branded Arrows using these Ravin lighted nock. Ravin Lighted Nocks3 PackLED Illuminated NocksContain a built-in lithium batteryUltra-bright orange color is easy to track in flightLumenok™ Technology Note: Use only Ravin-branded arrows with Ravin clip-on nocks Ravin Crossbows Ravin Replacement Lighted Nocks 3 Pack R135