EASTON VECTOR ARROWS BULK PACK 29 IN. 2 IN. FEATHERS 1200 SPINE 72 PK. 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. All Vector arrows come pre-cut to length and ready-to-shoot with factory fletched 2" feathers and preinstalled nocks.