Nexxus Infinity Arrows 2in Q2i Fusion Vanes 6 Pack Black 400. These 4.2mm/.166 ID micro diameter shafts are paired with the Defender outsert system providing increased penetration and durability for your arrow setup. This micro diameter shaft has less wind drift in flight resulting in improved accuracy when compared to standard diameter shafts. Specifications for Nexxus Infinity Arrows Q2i Fusion Vanes: Manufacturer: Nexxus Color: Black Quantity: 6 Size: 400 Features of Nexxus Infinity Arrows: Increased penetration and durability Micro diameter shaft has less wind drift in flight 4.2mm/ .166 ID 5.9mm OD 8.05 GPI Package Contents: Nexxus Infinity Arrows Nexxus Infinity Arrows