NX90 Black Edition 90% Tungsten Steel Tip Darts by HarrowsReleased in 2022, NX90 has quickly become one of our most popular tungsten darts in our current range. This new model has the exact same specifications as the original NX90 dart, and now, the entire barrel has been coated in tough black titanium nitride. A combination of ringed, micro and scalloped cuts give this dart a unique feel, offering all players a grip sequence to suit their throw. High quality 90% tungsten. Three distinctive grip styles.