Datadart Kevin McDine Darts – Steel Tip – 90% – Black Ring. All Kevin McDine 90% Tungsten darts are individually packaged and include a set of durable stems and a set of Datadart flights.Datadart Kevin McDine Darts – Steel Tip – 90% – Black Ring. All Kevin McDine 90% Tungsten darts are individually packaged and include a set of durable stems and a set of Datadart flights.