Unicorn autograph darts S2 26g 80%. .What. Brand name: Unicorn Darts.. Models include Autograph S2. Weight: 26g. The tip is metal . The material is 80% tungsten. Barrel width: 8.1mm. Long barrel: 44.8mm. . What. The product consists of 1 set of 3 dart bodies Unicorn Darts, 1 set of 3 feathers and 1 set of 3 reeds.