Ravin .001 HD Match-Weight Lighted Arrows, 500 Grains, 3-Pack Pure carbon construction 500 grain using 100 grain field tip (not included) High-impact aluminum nock bushings High-impact brass threaded inserts .001" straightness tolerance Offset 2" vanes Illuminated nocks with Lumenok Technology Compatible with most Ravin crossbows (not designed for Ravin 500 bows) Please note, Vane colors may vary.