TRI-SPINE COMPOUND DESIGN
The Nano-Pro™ RZ is simply the best compound long distance field target arrow in the world. The Nano-Pro RZ is a parallel shaft that has three different spines, a more flexible center RED ZONE® Technology with stiffer front and back sections. This multi-spine construction manages how an arrow flexes in flight (dynamic spine) delivering pin point accuracy. The Nano-Pro RZ is constructed with incredibly light yet strong 46-ton carbon, unlike aluminum core arrows the Nano-Pro RZ won’t take a set (permanent) bend, consistently holding their initial spine tolerance for several seasons.
 

• Advanced Technology. Extreme Accuracy
• Straightness: +/- 0.0015"
• Weight Tolerance: +/- 1.0 grains
• Spine Selection Tolerance: +/- 0.002"

• Includes Shaft Only No Components

PS:  The point #1 is for the following spines: 350 - 400 - 450. The point #2  is for the following spines: 500 - 550 - 600 - 650

Shaft / Spine / Grains Per Inch / Outer Diameter / Shaft Length / Internal Diameter
 650     .650"              6.5                     .191"                  32.5"                .124"
 600     .600"              6.9                     .193"                  32.5"                .124"
 350     .350"              9.6                     .215"                    33"                 .124"