The new Pitbull Tungsten soft tip set features 90% Tungsten barrels and the Yukon Spinster barrels. The barrels are thin with intricate diamond crosscuts. The Spinster Yukon shafts have the spinning top part of the shafts that will spin out of the way for higher scoring. These darts weigh in at 18 grams. Included are two sets of the Pitbull flights and the Viper Knight box case.