The Gold Tip Black Label Quantum Shafts are engineered for maximum penetration and performance, featuring a micro-diameter .204" design that excels in both toughness and accuracy. Part of the Black Label family, these shafts undergo laser-checked straightness testing and offer a straightness tolerance of .0025" with a weight tolerance of +/- 2 grains. Each shaft includes ballistic collars and aluminum inserts for increased strength and front-of-center performance.