Ravin XK5 .001 Match Grade Lighted Arrow. 001 and are the most premium arrows Ravin offers. The HD arrows have high-impact brass-threaded inserts with aluminum nock bushings and Ravin-engineered polymer nocks. The Lighted HD arrows will come in a 3 pack and utilize Lumenok Technology. Specifications for Ravin .001 XK5 500 Grain Match-Grade Lighted Arrows: Manufacturer: Ravin Color: Black Quantity: 3 Finish: Brass Weight: 500 grain Nock Type: Ravin Clip-on Nocks Fabric/Material: Carbon Condition: New Archery Application: Arrows Straightness: 0.001 in Features of Ravin .001 XK5 500 Grain Match-Grade Lighted Arrows 500 grain (with 100 grain field tip- not included)Use in Ravin Crossbows only 100percent pure carbon construction High-impact brass threaded inserts 2in offset vanes High-impact aluminum nock bushings Lumenok Technology Match-Grade arrows compensate for the added weight of lighted nocks and weigh the exact same as Ravin non-lighted arrows for the same flight accuracy. Package Contents: Ravin .001 XK5 500 Grain Match-Grade Lighted Arrows Ravin R144: XK5 .001 Match Grade Lighted Arrow