Carbon Express Heritage - Spine: 150/ 0,487 - The cams are already installed (green 150 fl). Other nock colors must be purchased separately! The Heritage of Carbon Express carbon shafts due to their high weight, especially for long-archers ideal. This suffers from the long arc not due to low weight and arrow the archer has an arrow for the training of almost all endure. By approximately the same weight as it brings a cedar arrow on the scale, you notice the switch before a competition is not on his wooden arrows. This must not be re-programmed the subconscious and there is no transition period. Spine values: 150er: .487 Tip diameter: 150-350 = 5/16 Weight: 150 series - 10 gn / inch Shaft length of 150mm is 33 inches, Attention: Cam for 150 It fit the Uni Nocks Bohning Nocks and Easton Standard