Carbon Express 50951 Mutiny Hunting Arrow with 2-Inch Vanes and LaunchPad Precision Nock, 250-Size, High Polish Finish Best-in-class accuracy Weight sorting tolerance is +/- 2.0 grains Laser checked for straightness to a remarkable 1/10,000 of an inch LaunchPad Precision Nocks deliver a controlled arrow release, better shaft alignment and more consistent accuracy shot after shot Compact, low-profile performance vanes for maximum arrow velocity and greater accuracy Sold as single unit