Harrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts. Harrows Spina Darts – Steel Tip – Black & BlueHarrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts.Harrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts.Harrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts.Harrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts.Harrows Spina Steel Tip Darts – 90% Steel Tip Tungsten. Features: 90% Tungsten Barrels, Harrows Flights and Shafts.