Easton Vector Arrows Bulk Pack 2.3 in. Vanes 600 72 pk.Eastons New Vector is a 4mm 100% carbon fiber arrow engineered using the same high performance processes used in advanced tournament arrows, but priced for value conscious consumers, making the Vector ideal for archers who may be getting started in target archery or quickly progressing to higher poundage bows and needing to change arrow setups to match.