Ravin Crossbows R133 Match Weight Lighted Arrows are 400 grains with a .003" tolerance, designed for consistent performance. This 3 pack includes ultra-bright nocks that assist in locating arrows easily after shots. These arrows compensate for the added weight of lighted nocks, ensuring identical flight accuracy compared to Ravin's non-lighted arrows. They are compatible with all Ravin models except the R500 Series Crossbows.Key FeaturesGrains: Each arrow weighs 400 grains for optimal balance and performance.Length: Arrows are 22.25 inches long, suitable for a variety of hunting conditions.Lighted Nocks: Features ultra-bright lighted nocks for easy visibility and quick recovery.Quantity: Sold in a convenient 3 pack for multiple uses.