The Maxima Blu RZ 150 combines the same lightweight speed and accuracy of the Maxima Blue Streak Select with the breakthrough broadhead accuracy of the Maxima RED. The BLU RZ is made with Carbon Express? proprietary Diamond Weave carbon material and features a hi-tech carbon shaft designed with stiffer ends that isolate the arrow?s flex in the middle of the shaft: the RED ZONE. Testing shows that the BLU RZ with RED ZONE technology flies broadheads as well as field points. Comes in packs of 6.